variable scope improvement

include function / mixin arguments in body
fix body

make generic block item rather than rule block so that we don't see
property intellisense
Revert "fix body"

This reverts commit 2b4af53ec52648ca88679ec83e2b101a3c3dec08.
fix exception

bounds checking
Merge branch 'master' of https://github.com/darrenkopp/SassyStudio
don't show intellisense

well, now we don't show intellisense in this context... but it will be
shown on property values since they are still being considered as
properties. intellisense WILL be shown when using conditional within
rule block though, which is what should be happening.
facepalm

closes #16
import completion values

completion support for @import directives