Update Model.php function asDateTime: startofDay(00:00:00) if from Y-m-d timestamp (DateAccessor)

As the pull request https://github.com/laravel/framework/pull/2227 was closed but the startOfDay() was only inserted in the function fromDateTime, this pull request adds startOfDay() also to the accessor function (asDateTime), so you can compare two dates without the automatically added incorrect time of the current moment.
Added test data to Blade Compiler Test
Merge pull request #2579 from cangelis/blade_test_case

Added test data to Blade Compiler Test
Remove special SQLite order by logic.
Merge pull request #2578 from lanort/4commit

Update Model.php function asDateTime: startofDay(00:00:00) if from Y-m-d...
Remove unnecessary SQLite test.
getQueue should be public like in IronQueue
Merge pull request #2588 from GrahamCampbell/4.0

getQueue should be public like in IronQueue
Change visiblity of properties on pluralizer.
Fix issue in Str::finish() with multicharacter cap.
Simplify Str::is() by removing useless special handling of '/'
added another test.
Merge branch 'str_is' of https://github.com/vlakoff/framework into str-is
Adding Str::is tests.
Make extend() return manager instance.
Merge pull request #2609 from franzliedke/patch-14

Make extend() return manager instance.
Check is_string.
Tweak resolving to be by abstract. New resolvingAny for global resolving events.
Update change log.
Do not run queue workers while application is in maintenance mode.