Caroline

This release backports bugfixes and improvements from master to libsass 3.4.

Release was tested with valgrind against all spec-tests to be free of (known) leaks.

Features

• Implement case modifier for attribute selector (@mgreter, #2528)
• Emit warning for double parent selectors (@mgreter, #2530)
• Throw error if cwd goes missing (@mgreter, @asottile , #2529)
• Throw error when mixin ruleset in root has parent selector (@mgreter, #2532)

Fixes

• Fix to connect parent selector only once (@mgreter, #2524)
• Fix endless loop comparing Selector_List to List (@mgreter, #2526)
• Fix whitespace issue for wrapped selectors (@mgreter, #2531)
• Fix SmartOS/Solaris build regression (@mgreter, #2525)
• Fix travis-ci mac OSX builds (@mgreter, #2527)