Update README.md

Request to add alternative set up for Mongo Eloquent
Merge pull request #66 from wikichua/patch-1

Update README.md
Rewrite readme
Adding tests for issue #68
Added *.project to gitignore
test models added
Relations test updated
Belongs to many relationship class added
Model updated
Models fixed and tests updated
Merge pull request #70 from DyeH/master

Many to Many relationships
Slimming down the BelongsToMany class
Tweaking BelongsToMany namespaces
Small readme update for belongsToMany
Merge branch 'master' into develop