switch to Tango color scheme for default colors

Everything looks nicer already :P
http://tango.freedesktop.org/Tango_Icon_Theme_Guidelines
Fix #209, bad JS generation for primes in patterns
Update tests to cover the bugs that got reported leading up to 0.9
Make a proper `Main` module
Make the `Main` module runable
Succeed on programs that have no expressions
Make pattern exhaustive, giving parse error when someone uses binops with different associativity
Add test case for programs with no expressions
Remove dead code
Nicer messages on specific parse failures
Convince parser to commit to lists, records, and tuples
deprime on parsing, not on JS generation
reprime when printing expressions and patterns
reprime when printing types
Bare minimum framework for testing
Permit single line comments intermingled with types
Avoid extra updates (as recommended by Jeff)
Fix transparency issue in #210
Actually run tests!!!
Clean up after testing