Fixed bug in ProcessCompiler where it would prefer system $PATH value…

…s over config defined

Fixed ServiceProvider to merge default config recursively

Fixed bug in ScssCompiler that would pass the wrong include_path argu…

…ments to gem-based scss

Updated README

Broke up UnpublishCommand to be more extendable

Updated PublishCommand to be a bit more flexible for subclassing

Quick fix for minor bug introduced in 6e5fc29

Updated JavascriptCompiler to take advantage of new compile() method:

* If not minifying, the path contents are simply returned instead of invoking overhead of Process and cat-ing contents
* When minifying, uglifyjs can now be invoked directly

Updated for Laravel 5.2

Merge pull request #2 from saverio/master

Location of cat binary has changed on OS X and fixed a JS compile bug.