* Enforce all error report for php tests.

* Import vendor/autoload.php in tests/bootstrap_phpunit.php

protobuf_generate: add EXPORT_MACRO option

Test Shutdown can be called multiple times.

Allow initializing a chain of protos using only a hash in Ruby

* Add $ before url_prefix_len to make it a variable.

* Remove unnecessary string length check

* Remove useless $type_url_len

Fixed to_h with repeated messages to return hashes in Ruby

Conformance Tests for Null Timestamp and Duration JSON Values

Integrated internal changes from Google

Fix go example test.

It needs "-I" flag to find imported file google/protobuf/timestamp.proto

Clang warning cleanup for unused parameter.

Fix policy warning CMP0054

Google.Protobuf should target net45 (upport to upstream/master)

fix protobuf_generate function

Add bazel support for examples.

This addressbook.proto now belongs to its own bazel pacakge and can't be
accessed in bazel protobuf_test target.

The example utilizes native bazel rules (proto_library, cc_proto_library,
java_proto_library, java_lite_proto_library) to show how easy it is to
build protobuf with bazel's native support. It also makes use of well
known types which was not possible until the latest bazel 0.5.4 release
and https://github.com/google/protobuf/pull/3594 .

python: do not include internal 'strutil.h' header

Update autogen.sh

bazel: Add proto_library rules for well known types. Fixes #2763

Adds a proto_library rule for each well known type proto:

$ bazel query "filter(\".*_proto$\", \"...\")"
//:wrappers_proto
//:timestamp_proto
//:struct_proto
//:field_mask_proto
//:empty_proto
//:duration_proto
//:compiler_plugin_proto
//:descriptor_proto
//:api_proto
//:type_proto
//:source_context_proto
//:any_proto

Bazel users can reference these proto_library rules for their own
language specific rules i.e.

java_proto_library(
  name = "any_java_proto",
  deps = ["@com_google_protobuf//:any_proto"],
)

Also set the workspace name to "com_google_protobuf", as proto_library
rules reference protobuf that way.

Fix the bug in following scenario:  

gmock is downloaded successfully while gtest not. Resuming "autogen.sh",
the gtest won't be downloaded. And following error will occur:  

$ ./autogen.sh
+ autoreconf -f -i -Wall,no-obsolete
aclocal: error: configure.ac:1: file 'gtest/m4/acx_pthread.m4' does not exist
autoreconf: aclocal failed with exit status: 1

Move parse frame array to the Map object

* Add php support for Timestamp.

* Fix comments

This makes the frame stack per-parser, and per-thread.  Fixes #3250