Refactor Illuminate\Foundation\Application\TestCase to AssertionTrait and ApplicationTrait

This allow easier testing support for developer wanting to use testing facility other than PHPUnit such as Behat or etc.

Signed-off-by: crynobone <crynobone@gmail.com>
Add failing test

Signed-off-by: Daniel Bøndergaard <danielboendergaard@gmail.com>
Fix nested route group namespaces

Signed-off-by: Daniel Bøndergaard <danielboendergaard@gmail.com>
Throw an exception if a package is created without setting the author's email
Return trashed models with morphTo() if told so on non-eager queries (fixes #4870)
Fix logic around marking services resolved or not

If you app->extend an object after it's been bound but before it's
been resolved, it will be initialized right away. The solution is
to just check if an object has actually been resolved rather than
if it's bound.

A related issue that can also be solved as a part of this is that
you can't extend deferred services. This has also been fixed.
tests for 3841d39
Minor docblock fixes
Changed @forelse syntax and allow for nesting them
Merge pull request #5043 from JoostK/forelse-nested

Changed @forelse syntax and allow for nesting them
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