THRIFT-1955 Union Type writer generated in C# does not WriteStructBegin

Patch: Carl Yeksigian
THRIFT-1949: WP7 build broken
THRIFT-1956: Switch to Apache Commons Lang 3
Client: java
Patch: Christoffer Sawicki

Updates commons lang from 2.5 to 3.1
THRIFT-1850 make check hangs on TSocket tests in TransportTest.cpp
Patch: Randy Abernethy
THRIFT-1956: Switch to Apache Commons Lang 3
Client: java
Patch: Christoffer Sawicki

Updates commons lang from 2.5 to 3.1
THRIFT-1952 Travis CI (.travis.yml)
Patch: Roger Meier
THRIFT-1952 Travis CI (.travis.yml)
Patch: Roger Meier
disable python
THRIFT-1952 Travis CI (.travis.yml)
add cross language test suite (sh test/test.sh)
THRIFT-1932 TFileTransport::readEvent() casts values read from input stream into a pointer and then dereferences it.
Patch: Hugo Mildenberger
THRIFT-1760 [Ruby] Remove unnecessary native protocol code
Patch: Nathan Beyer
THRIFT-1917 Task expiration in TThreadPoolServer
Patch: Ivan Fastov
THRIFT-1960 main() declares 22 unused gen bools
Patch: Randy Abernethy
THRIFT-1956: Switch to Apache Commons Lang 3
Client: java
Patch: Christoffer Sawicki

Missed line in patch for updates to commons lang from 2.5 to 3.1
THRIFT-1961 C# tests should be in lib/csharp/test/...

Patch: Jens Geyer
THRIFT-1901 C#: Support for Multiplexing Services on any Transport, Protocol and Server

Patch: Jens Geyer
THRIFT-1961 C# tests should be in lib/csharp/test/...

Patch: Jens Geyer