[#12] - Output directory defaults to current directory.
[#5] - Added a check is webkit2png is available. We might be able to use this to detect other screenshot apps down the road.
Fixed group not getting a single url.

Fixes issue #21
Merge pull request #22 from firstandthird/bug/grouped-doesnt-contain-single-url

Fixed group not getting a single url.
Merge pull request #16 from firstandthird/feature/default-output-directory

Output directory defaults to current directory.
Merge pull request #17 from firstandthird/feature/check-webkit2png

Added a check is webkit2png is available.
Release 0.1.3
Fixed incorrect base path.

Fixes issue #21
Merge pull request #24 from firstandthird/bug/incorrect-base-directory

Fixed incorrect base path.
Release 0.1.4
Merge branch 'master' into feature/webkit2png-options

Conflicts:
	History.md
	lib/screenshot.js
	package.json