Adds RenderOptions to the context of custom functions. (sass#1236)

Allow the null safety release of stream_transform (sass#1223)

Merge pull request sass#1217 from Mstrodl/patch-5

Bump version

Merge pull request sass#1208 from sass/node-api-bugs

Fix a few Node.js API bugs

Merge pull request sass#1198 from sass/deploy

Fix some deployment infrastructure

Fix the expected format for GitHub refs (sass#1197)

Print the values of deprecated numbers passed to color functions (sas…

…s#1184)

See sass#1174

Avoid permissions errors in _realCasePath. (sass#1181)

This catches permissions errors and treats them as indicating that the
path component we have so far is canonical. This also improves the
efficiency of case matching by caching results for higher directories.

Merge pull request sass#1175 from sass/angle-units

Deprecate incorrect HSL units

Add support for clamp() as a special math function (sass#1168)

Closes sass#1146
See sass/sass#2860