CL: mg: Properly support MQTT wildcards when matching topics

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

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CL: none

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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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Do not clear buffer at the end of multipart request to allow following request to proceed.

Closes https://github.com/cesanta/mongoose/pull/940

CL: mg: Fix pipelining issue with multipart upload

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curl -F file1 -F file2 ...

Add a unit test and fix a minor memory leak when returning an error.

CL: mg_file_upload_handler: Support multiple files

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CL: Add `mg_url_encode_opt()` - a parametrized version of `mg_url_encode()`

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Per standard, cookies are delimited by `; `.

CL: Fix mg_http_parse_header: treat ";" as a delimiter.

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A major cleanup, disentangling net_if and ssl_if.
Pulled a lot of common logic into the core and reduced size of net_if implementations.

CL: Mongoose net_if and ssl_if refactoring

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mongoose: fix formatting

mongoose: fix formatting

mongoose: remove debugging messages

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E.g. if `ASSERT_EQ(myfunc(), 123)` fails, `myfunc()` would be invoked again to print the actual value.
This can cause confusion sometimes.
To avoid this, we cast arguments to double, which is wide enough for most cases and we provide a variant for 64 bit value types for when it's not.
We also perform a check and fail if argument to the check results in loss of precision.

CL: none

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Which is a replacement of (deprecated) `mg_http_parse_header`, but,
similarly to `asprintf`, allocates a new buffer if the client-provided
one is not large enough.

Also use it throughout mongoose code, and thus some header-related
limitations are removed; in particular,
https://github.com/cesanta/mongoose/issues/813 is fixed.

CL: Mongoose Web Server: Deprecate `mg_http_parse_header()` and implement `mg_http_parse_header2()` instead, which allocates a new buffer if the client-provided one is not large enough (similarly to `asprintf`).
CL: Mongoose Web Server: Fix limitations of header value lengths, e.g. when parsing authentication headers such as nonce, etc.

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CL: none

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CL: none

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CL: Mongoose Web Server: Remove tunneling functionality which was used by nobody

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CL: Mongoose Web Server: Publish sources and tests

Resolves https://github.com/cesanta/mongoose/issues/745

PUBLISHED_FROM=7ecd7a3c518cfa614a6ba0838678dcb91b75a8c0

Fix remove_double_dots_and_double_slashes removing all the dots leading http server to serve wrong URI

If the uri is something like '/js/...jquery.js', remove_double_dots_and_double_slashes will remove the 3 dots and the http server will serves the /js/jquery.js file.
remove_double_dots_and_double_slashes should check if a dot or double dots is followed by a slash (or backslash) and only remove this to avoid disclosure attack.

mg_read() does not block on content_len=0. mg_read() reads until socket is closed if content-length is not provided

Fix for the SCRIPT_NAME in the presence of PATH_INFO, https://code.google.com/p/mongoose/issues/detail?id=403