changes and tests
Make Paginator decorate Collection methods
Remove unused  variable in test
Allow Collection::sortBy and sortByDesc to accept a string
Fix incorrect comment
Small comment typo fix in Illuminate\Routing\Router
strtolower -> camel_case
Remove some unused variables in functions.
Fixed namespace typo in comment
Merge pull request #3341 from billmn/patch-1

Fixed namespace typo in comment
Changed supportBoris to check for pcntl

Boris also requires the pcntl php extension, so we should check if its there before using Boris for tinkering.
eased replacement of Route
unsetParameter
raw regex filters
forgot newline
Merge pull request #3342 from cogitools/4.1

Changed supportBoris to check for pcntl
Fix boolean operators.
Fix helper message in asset publish console command.
Merge pull request #3347 from daylerees/fix-help-message

Fix helper message in asset publish console command.
Explicitly suppress filesystem error on `forget()`