Added 'shared' method to View to pull a single shared item out.
Replace :count lang choice
Update Filesystem.php

Changed deleteDirectory and cleanDirectory function. Now return true on success.
Merge pull request #2396 from PhiloNL/patch/choice-number

Replace :count lang choice
Update Filesystem.php
Add getCachingIterator method to collection.
Merge pull request #2397 from AbhishekGahlot/patch-2

Update Filesystem.php
Fix doc blocks and stuff.
Add parens.
Work on session cookie options.
Added assertHasOldInput test assertion.
Added slick new 'sometimes' method to Validator for conditionally adding rules.
Allow multiple attributes on sometimes.
Type hint.
Merge branch '4.0'