Use environment_path from spork config if it's set

Useful if you use Librarian with knife integration. Without this fix
it's not saving the file to your chef-repo, it's using the librarian
cache.
Merge pull request #43 from greenalto/promote_environment_path

Use environment_path from spork config if it's set to save the new environment JSON file
Version bump for 1.0.13
Add support for Berkshelf
- fixes #41
Add organization name to plugin output
- fixes #18
Use campy instead of tinder
change reference in README
Only calculate the diff if it exists remotely
remove foooooo
play nice when there's no organization name
Merge pull request #48 from sethvargo/campy

Use campy gem instead of tinder
Merge pull request #45 from sethvargo/safer_calc_diff

Promote fails on a cookbook that hasn't already been uploaded remotely
Merge pull request #47 from sethvargo/organization_name

Add organization name to plugin output
Merging sethvargo/berkshelf
Fixing organisation method to remove protocol before splitting
CHANGELOG and gemspec for 1.0.14
Update README.md

Corrected a typo.
Merge pull request #50 from Version2beta/patch-1

Update README.md
Fixes to git and foodcritic plugins
Remove debug puts in git plugin