Push version to 0.2
Push version to 0.2

This release adds:
* Support for HAML
* Support to yield values into the content blocks

zBMNForks/sinatra-contrib,gferguson-gd/sinatra-contrib,gferguson-gd/sinatra-contrib,TimurTarasenko/sinatra-contrib,lvonk/sinatra-contrib,joelmoss/sinatra-contrib,TimurTarasenko/sinatra-contrib,mwpastore/sinatra-contrib,r7kamura/sinatra-contrib,chicisimo/sinatra-contrib,sferik/sinatra-contrib,D1plo1d/sinatra-contrib,lvonk/sinatra-contrib,joelmoss/sinatra-contrib,foca/sinatra-content-for,r7kamura/sinatra-contrib,rkh/sinatra-contrib,sferik/sinatra-contrib,zBMNForks/sinatra-contrib,mwpastore/sinatra-contrib,chicisimo/sinatra-contrib