Made findImport method public to enable usage from outside
Fix for @extend infinite loop.

Appears in _navs.scss in Twitter Bootstrap 3.0.0.
Allow setting number precision
simplify setExisting()
Merge pull request #133 from kasperisager/feature/number-precision

Allow setting number precision
Merge pull request #109 from Burgov/public_method

Made findImport method public to enable usage from outside
fixes issue #103 - make "get" method public
Make more function helpers public (ported from leafo/lessphp 667702ca72)
Merge remote-tracking branch 'oscherler/extend-loop'
update comment block
add explicit scope modifier where previously implied