Actual output to libsass!
Replace C.union_* with Go datatype so testing is sane

Custom sass functions now return sass values
Update tests to actually do things
The pool is closed
callback already being tested
rearrange code into a sensical fashion
try specifying the newer hipchat version
cleanup
Setup function pipelines and implemented image-url test case
Try testing before goclean.sh
docker required hacking
turn on verbose testing
sudo for wercker
append is breaking cgo on linux
define a static slice to fix bugs
Add docker testing instructions
Adding support for variadic marshalling