THRIFT-1962 Multiplex processor should send any TApplicationException back to client

Patch: Jens Geyer
THRIFT-1965 Adds Graphviz (graph description language) generator

Patch: Rodrigo Setti
THRIFT-1969 C#: Tests not properly linked from the solution

Patch: Carl Yeksigian
THRIFT-1972 Add async server processors to Java

Patch: Jake Luciani
THRIFT-1907 Compiling namespace and sub-namespace directives for unrecognized generators should only be a warning
Patch: Andrew Cox
Revert "THRIFT-1907 Compiling namespace and sub-namespace directives for unrecognized generators should only be a warning"

This reverts commit d28d4d578470233e384ae6012d0ecfa5a8f3deba.
THRIFT-1907 Compiling namespace and sub-namespace directives for unrecognized generators should only be a warning
Patch: Andrew Cox
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/thrift
THRIFT-1970 [Graphviz] Adds option to render exceptions relationships

Patch: Rodrigo Setti