modified m and test.js to exit with exit codes.
travis config file
Make set.js use correct boolean singletons.
Make pow() handle large integers as longs.
added simple 'document' module example
Merge pull request #108 from mrshu/master

Added simple 'document' module example
Merge remote-tracking branch 'rixner/master'
Update dist.
Add Sk.builtin.checkBool function.
Some turtle methods were returning old style javascript numbers, not numbers constructed to be Python objects.  See the error that is can cause in #110
rebuild dist
Merge branch 'master' of github.com:bnmnetp/skulpt
typo
Fixing situation when assert has no explanation
Merge pull request #111 from mrshu/master

typo
Merge remote-tracking branch 'rixner/master'
Change goog.asserts to a SystemError exception.

When running with the compiled Skulpt, goog.asserts is not available,
so internal errors yield a mystifying message.  Hopefully, this will
make things fail in a more understandable way.
Make group() method in re module accept no arguments.
Fix Sk.misceval.objectRepr to print 'inf' and '-inf' correctly.
Updated readme to show build status.