merge in the sending of hierarchical typedefs from branch typedefs

.gitignore

compiler/2014/C_CodeGen.jrag

compiler/2014/FlatSignature.jrag

compiler/2014/Java_CodeGen.jrag

compiler/2014/LabComm.ast

compiler/2014/PrettyPrint.jrag

compiler/2014/Signature.jrag

doc/tech_report.tex

examples/simple/Encoder.java

examples/simple/EncoderIS.java

examples/simple/example_decoder.c

examples/user_types/Decoder.java

examples/user_types/Encoder.java

examples/user_types/ExampleDecoder.cs

examples/user_types/Makefile

examples/user_types/TDDecoder.java

examples/user_types/example_decoder.c

examples/user_types/test.lc

examples/wiki_example/run

lib/c/2006/labcomm2006.c