All the platforms except esp32 (which uses heavily patched 9.0 from IDF) and esp8266 (doesn't use RTOS at all) are using the same version of FreeRTOS now.

CL: Make FreeRTOS a library, upgrade to 10.2.0

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Run CPU at 180 MHz, flash at up to 100.

CL: RS14100: FS support, increase CPU and flash clock

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CL: mg: Deliver EV_CLOSE to the last endpoint handler

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CL: none

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The humble beginning...

CL: RS14100: Blinky

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CL:  Allow NULL handler for mg_bind and mg_connect

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 * Add calculated redundancy values when writing eFuse blocks 1-3
 * Perform 192 -> 256 bit key extension when encrypting images for flashing

Fixes https://github.com/cesanta/mos-tool/issues/37

CL: mos: ESP32: Add support for the 3/4 key encoding scheme

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Check response code, make sure it's 101.
Pass http_message to the client to keep it appraised.
This represents a slight change in the API -
in case of an error MG_EV_WEBSOCKET_HANDSHAKE_DONE will now be delivered where previosuly connection would just hang.
Clients that do not examine the argument may for a moment think handshake has succeeded but in fact connection will be closed immediately.

CL: mg: Fix handling of WS handshake error response

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CL: STM32F2 and Particle Electron board support

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CL: none

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Use old baud rate and autodetected divider to calculate new divider.

This works better with higher baud rates and drifting clocks.

CL: mos: Improve ESP flasher baud rate setting

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cs_log_set_filter() is removed in favor of cs_log_set_file_level() which
allows setting log verbosity of individual files and/or lines.

E.g.: `mg_=1,mjs=1,=4` - level for for everything except mjs and mongoose.

We use the fact that we are usually pretty careful with our file names and use prefixes consistently.

In mos, `debug.file_level` sets the option on boot and `Sys.SetDebug` is updated to parse `file_level` option to change it at runtime.

CL: Log file:line instead of function; add cs_log_set_file_level()

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CL: mg: Properly support MQTT wildcards when matching topics

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CL: Add mg_strfree()

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CL: Send extra options with OPTIONS. Integrate https://github.com/cesanta/mongoose/pull/657

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CL: Fix nsleep100 on STM32

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CL: none

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CL: Check for NULL in tcp_recved_tcpip()

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CL: wifi: CC3220: Enterprise auth support

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If user throttles receive by setting recv_mbuf_limit,
after the net interface reports connection as closed we must wait
for data to trickle through before disposing of it.
There can still b data in the buffers (e.g. SSL).

CL: mg: Ensure that user sees all the data before connection is closed

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CL: Make MG_CTL_MSG_MESSAGE_SIZE overridable

Fix https://github.com/cesanta/mongoose/pull/987

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CL: Add mbuf_append_and_free() and mbuf_move()

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It can specify how much data was actually processed and the rest will be re-delivered on next poll.

CL: mg: Add ability for multipart data handler to provide pushback

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Replacement for fw_meta.py commands and also supports unbundling .hex files.

General syntax is:

```
 $ mos create-fw-bundle -o fw.zip part1:prop1=val1,prop2=val2,... part2:...
```

Example of building a mos fw bundle for ESP8266:
```
 $ mos create-fw-bundle -o fw.zip --platform esp8266 --build-info=build_info.json \
    boot:addr=0x0,src=rboot.bin,update=false \
    boot_cfg:addr=0x7000,size=0x1000,fill=0xff \
    fw:addr=0x100000,src=demo-c.bin \
    fs:src=fs.bin,type=fs,addr=0x8000,fs_size=262144,fs_block_size=4096,fs_page_size=256,fs_erase_size=4096
```

Example of converting a HEX file to a bundle:
```
 $ mos create-fw-bundle -o fw.zip host:type=host,src=hostfw.hex
```

CL: mos: Add create-fw-bundle command

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CL: none

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CL: mg: Read all available data during recv poll

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CL: Add MG_MK_STR_N() and mg_str_starts_with()

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Should use length of the exected response, not the response sent by the user.

CL: mg: Fix digest auth result comparison

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CL: none

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CL: none

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CL: Update mbedTLS to 2.13.1

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CL: mg: Check HTTP chunk size, ensure it's reasonable

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Clean the HTTP connection state when ia request/response has been fully
buffered and handler invoked.

Fixes https://github.com/cesanta/mongoose/issues/971

CL: mg: Fix handling of keepalive HTTP requests/responses

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Go back to Ubuntu 16.04 and older gcc-arm (4.9.3).

Boot loader just won't run when compiled with newer GCC (7.x).
It's likely that it can be fixed with compile switches but I couldn't figure it out quickly, so going to just downgrade for now to get it back to workign state.

CL: CC3200: Fix boot loader regression

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CL: Add mgos_gpio_blink()

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