THRIFT-1681: Add Lua Support Patch: Dave Watson

Github Pull Request: This closes #92
diff --git a/compiler/cpp/Makefile.am b/compiler/cpp/Makefile.am
index 5fee856..47725bd 100644
--- a/compiler/cpp/Makefile.am
+++ b/compiler/cpp/Makefile.am
@@ -90,7 +90,8 @@
                   src/generate/t_delphi_generator.cc \
                   src/generate/t_go_generator.cc \
                   src/generate/t_gv_generator.cc \
-                  src/generate/t_d_generator.cc
+                  src/generate/t_d_generator.cc \
+                  src/generate/t_lua_generator.cc
 
 thrift_CPPFLAGS = -I$(srcdir)/src
 thrift_CXXFLAGS = -Wall