v0.1.8

Announcements:

• Online documentation moved to http://leafo.github.com/scssphp/

Compatibility Bug Fixes:

• index() - map support; now returns null (instead of false) when value not found
• lighten(), darken() - percentages don't require % unit
• str-slice() - edge cases when starts-at or ends-at is 0
• type-of() - returns arglist for variable arguments
• !=
• @return inside @each

New Features:

• Box support to generate .phar