Implementation for parsing 'exec'
fixes #4 add travis-ci.org support
git submodule clone using github public git:// is faster than https://
add some testing for travis
-we can't run the full check-pyston suite until import_test is updated
add gcc-4.8 to the travis build matrix
add irc notifications to travis
travis run lint and check-format first
travis only post to irc if the build fails, or was failing and starts passsing
add dropbox copyright to tools/measure_loc_ext/measure_loc.cpp
travis reduce number of compilation threads to prevent the gcc build from being killed
-the clang build seems fine past 4 threads
disable travis gcc build for now
-the g++ build is frequently killed during the day, but seems to work fine at night
Minor measure_loc improvements
Forgot to add this
Should check this at the end to at least identify the issue rather than giving bogus results
add two passes which remove unnecessary boxing
* the first one removes boxInt, boxFloat and boxBool calls where the argument is coming from a corresponding unbox call
* the second pass removes duplicate boxing calls inside the same BB

together they improve the performance by about 10%
fixes #238 improve Debug linking time by building LLVM -O3
-this significantly reduces the size of the resulting object files
cmake automatically use ccache if found
Updates to the measure_loc tool
Merge pull request #243 from undingen/boxing_opt

add two passes which remove unnecessary boxing
Rename expr->body