Merge pull request #20 from yogthos/master

updated readme
Merge pull request #21 from yogthos/master

added assoc-in! and update-in! for sessions, bumped version, regenerated docs
Merge pull request #23 from yogthos/master

fixed not to use site handler from compojure to avoid duplicating wrappers
Merge pull request #24 from yogthos/master

fixed ordering of middleware
Merge pull request #25 from yogthos/master

updated docs
Few fixes in restricted macro.
Merge pull request #26 from edtsech/restricted

Few fixes in restricted macro.
bumped version
updated version in docs
Added common website hashing functions
Removed a line not required
Changed hasher object to a better name
Merge pull request #27 from runexec/master

Added some common website hashing functions
bumped version
added get-in and get-in! to session