THRIFT-2784 Eliminate compiler warnings in generated C++ code

remove unused MyEnum5 and add -pedantic to lib/cpp/test/Makefile.am
format: spaces instead of tabs
THRIFT-2784 Eliminate compiler warnings in generated C++ code

Patch: Roger Meier
THRIFT-2788: enable TCP keep alive for sockets in java lib.

This closes #248

Signed-off-by: Roger Meier <roger@apache.org>
THRIFT-2602 fix missing dist files

- add automake 1.13 dependency to configure.ac and doc
- use serial-tests instead of .NOTPARALLEL (introduced by THRIFT-1829)

Patch: Roger Meier
libgenerate extracted from thrift executable so compiler specific unit tests can be added
compiler: IndentKeeper extracted from t_generator

* tests added for IndentKeeper
* t_generator movd a little bit towards meeting SRP
* IndentKeeper can be reused by lower level generator
     (like MethodGenerator)
* IndentGuard added
* ScopeGuard added
compiler: C++ generator refactoring started - operator<< generation made more 'clean'
compiler: OutputGenerator added

wraps output stream and keeps indent and stream to indent in one place
compiler: some Makefiles split

more towards single library/target - single Makefile
compiler - cpp11: HeaderFileGenerator added
compiler - cpp11: EnumGenerator added
compiler - cpp11: FieldGenerator added
compiler - cpp11: IncludesScanner extracted from FieldsGenerator
compiler - parse objects extracted to separate library
compiler - cpp11: IncludesGenerator extracted

FieldsGenerator getting lightier
compiler - cpp11: TypeGenerator extracted from FieldsGenerator
compiler - cpp11: FieldGenerator complete

for now
compiler - cpp11: typedef generation added
compiler - Makefile clean up

don't know why, but without it 'make check' was not resolving
dependencies properly. Now everything build in proper order