Provide access to the current Mincer.Environment to helpers
Merge remote-tracking branch 'origin/helper-environment'

* origin/helper-environment:
  Provide access to the current Mincer.Environment to helpers
Test on node 0.10.x
Add `enable` option to have ability to enable custom configurations
Keep subdirectory structure when compiling a manifest file

Keep the subdirectory information for assets when writing a manifest
file. The logical path in the manifest now represents the original
location in the filesystem and the fingerprinted asset will reflect
the original directory structure.

See bug reports #14, #17 for details.
Merge pull request #19 from pirxpilot/manifest-subdirectories

Keep subdirectory structure when compiling a manifest file [Fixes #14, #17]
Merge branch 'master' into source_maps

* master:
  Keep subdirectory structure when compiling a manifest file
  Add `enable` option to have ability to enable custom configurations
  Test on node 0.10.x
  Provide access to the current Mincer.Environment to helpers

Conflicts:
	Gruntfile.js
	test/mincer_test.js
Perform asset concatenation using SourceNode
Write the map file
Add base url for the source map
Document sourceMappingBaseURL option