Updated README

Fixed indentation in two of the examples and added one missing ruby syntax highlight

Fixes #73
WIP jruby fixes
Fix Haml 4.0.0 issues
Add new gemfile for travis and haml4.0
Add haml4 gemfile to travis config
moves precompile code into a class so it can be tested and extended
Drop Haml 3.2 gemfile as its a phantom release, added Ruby 2.0.0 to builds
more wip fixes
Tweaks for jruby in 1.9 mode
version bump for 1.0.0.rc2
comment out jruby from .travis as it fails on travis but not locally
Super hacky fix to last know jruby issue
Make certain specs a jruby only
Enabling defacing when config.deface.enabled = false
Merge pull request #88 from jumph4x/master

Recompilation w/ config.deface.enabled = false
fix typo in README
Merge pull request #91 from balexand/patch-1

Fix typo in README
Add support for slim
Note: have to use slim >= 2.0.0.pre.9
https://github.com/spree/deface/issues/65#issuecomment-18163941
Refactor slim/haml attributes on apply method
Update deface.gemspec