Make the Python generator use non-hardcoded namespaces.

- Make the Python generator use program->get_namespace("py")
  instead of program->get_py_module()
- Eliminate the explicit "py_module" in t_program.
- Deprecate the py_module token.
- Update example .thrift files and syntax files.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665615 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/thrift.vim b/thrift.vim
index 3551dbc..d4f509c 100644
--- a/thrift.vim
+++ b/thrift.vim
@@ -31,7 +31,7 @@
 
 " Keywords
 syn keyword thriftKeyword namespace
-syn keyword thriftKeyword php_namespace ruby_namespace py_module perl_package
+syn keyword thriftKeyword php_namespace ruby_namespace perl_package
 syn keyword thriftKeyword xsd_all xsd_optional xsd_nillable xsd_namespace xsd_attrs
 syn keyword thriftKeyword include cpp_include cpp_type const optional required
 syn keyword thriftBasicTypes void bool byte i16 i32 i64 double string binary