Added version model
Fixed bug that had a typo for current user
Improved formatting for db seeds.
Fixed version model. Added seed for version
Fixed default test for version
Added more seeds
Show version content instead of essay content. Additional enhancements to model objects.
Added title to versions
Changed some views to show version title instead of post title
Fixed a bug with wrong indexing of array
Create method in post controller now creates versions.
Updates to an essay now creates a new version
Removed title and contents from post mode. Now all dependant on versions.
Merge