updating diff-lcs dependency
adding gemnasium badge
improved memoizer support, cleanup
removing badge
adding -archetype-list and fixes for latest Compass
use Diffy for prettier diffs in dev testing
[travis] disable GC overhead limit for jruby
[travis] disable GC overhead limit for jruby (again)
[travis] disable GC overhead limit for jruby (again)
[travis] bump memory in JRuby...
improving rake test task in non-CI environment
Merge pull request #55 from eoneill/master

improved memoizer support, other minor fixes