Added missing mediumInteger column type
Added missing nullableTimestamps column type
Add a section about dropping timestamps, nullableTimestamps and SoftDeletes
[ Update ] Eloquent.md

I've just figured it out that laravel has got an awesome method called `updatePivotTable` so I put a little documentation under `Working with Pivot table`.

Let me know if everything is correct :smile:
Added Char type support according to #3460

Add Char type support to scheme builder #3460
https://github.com/laravel/framework/pull/3460
Update envoy installation.
Merge branch '4.1'
Fixing typo
Fix typo.
Merge branch '4.1'
A tiny gramatical fix
Add Cache::pull doc
Fix docs.
Fix docs.
Merge branch '4.1'
Added Windows to 'hostname' command tip
make current page highlight in zurb foundation

zurb foundation requires the empty href in order to highlight the current page
Add clarification on upgrade guide.
Fix a ton of doc formatting issues.
Merge branch '4.1'