implement conversion of ctree types to ctypes
add decl_type attribute to symbolrefs
add file node
skeleton for DOT graph generator
comment to explain how to run example
cleanup
rename SymbolRef::decl_type to type
Merge pull request #3 from leonardt/refactor-precedence-handling

Refactoring precedence logic, moving outside of nodes module.
wrote minimal code to get jit compilation working
added logging messages to jit compilation recipe
Merge branch 'master' of github.com:mbdriscoll/ctree
cleanup, fill in missing superclass construct calls
initial jit tests
add consistency check, module-level callable to generate dot
Adding travis-ci configuration.
Adding Travis badge to README; Updating travis script to install dependencies
Set LLVM_CONFIG_PATH in travis build.
implement fib example with full sejits-like stack
Use lastest llvmpy build for Travis.  Needed for llvm-3.3 support.
Install llvmpy without pip.