Merge branch 'release/v1.5' into develop
Fix compress into folder + Forgot to bump package.json version to 1.5.
Adding Bitdeli Badge
Updated for Ghost 0.4.1.

* Asset helper now used.
* Added page.hbs support. Currently it just removes comments.
Added draft of build docs
Bumped to version 1.6
Merge branch 'develop' for v1.6 release.