Hotfix for new API and error not being re-thrown
Fix for potential segfault
Fix conversion between unit and implement angles
Merge pull request #667 from mgreter/bugfix/unit-conversion

Fix conversion between unit and implement angles
Implement the unique-id() function
Fix possible segfault (init importer in old API)
Update sass2scss to latest version (1.0.2)
Fix possible segfault (init importer in new API)
Add minimal protection from calloc/malloc errors
Revert unneeded fix
Fixes missing EOF newlines.
Merge pull request #665 from xzyfer/wip/unique-id

Implement the unique-id() function
Merge pull request #678 from gorakhargosh/lgtm-fixes-missing-eof-newlines

Fixes missing EOF newline warnings in a couple header files.
Don't parse static values in declarations

Ruby sass has some smarts around determining whether a declarations
value needs to be parsed i.e. if it has function calls for interpolants.
The value looks static it's left untouched.
Merge pull request #679 from xzyfer/feat/skip-static-values

Don't parse static values in declarations
Add support for the not expression
Merge pull request #680 from xzyfer/wip/not-expression

Add support for the not expression
Normalize decimals in IE keyword args