Merge pull request #5042 from KennedyTedesco/4.2-docblock

Minor docblock fixes
Missing docblock argument
Fix docblock for MetadataBag namespace
Fixed user provider docblocks
Added missing request param
Cleanup whitespace again
Fixed view docblocks
Remove duplicate code
Fixed password broker docs
Database docblock fixes
Fixed cache doc blocks
Fixed support docblocks
Fixed routing docblocks
Fixed various docblocks
[4.2] Fix groupBy() bug

As described here
https://github.com/laravel/framework/pull/4276#issuecomment-45563986 by
@JosephSilber
Only create a "config" instance if only it not yet created.

Make it consistent with changes to Illuminate\Database\Capsule\Manager
merged in laravel/framework#4598

Signed-off-by: crynobone <crynobone@gmail.com>
Add to doc block.
Merge pull request #5060 from GrahamCampbell/4.2-docs

[4.2] Fixed Various Docblocks
Merge pull request #5062 from crynobone/feature/capsule-queue-config

[Queue\Capsule] Only create a "config" instance if only it not yet created.
Merge pull request #5059 from GrahamCampbell/4.2-cachedocs

[4.2] Cache Docblock Fixes