Improve project root identification customization.
Merge pull request #299 from thomasf/project-root-parent-override

Support parent project root files which overrides current directory.
Added open in dired mode for helm-source-projectile-files-list
Merge pull request #306 from danielwuz/master

Added open in dired mode for helm-source-projectile-files-list
Always return absolute path from `projectile-project-root`

Fixes #305
Rename tests that don't follow `projectile-test-*` convention
Merge pull request #307 from Silex/master

Always return absolute path from `projectile-project-root`
Add file existence cache.
Merge pull request #310 from thomasf/file-exists-cache3

Add file existence cache.
Indentation fixes
Add basic go project support
Merge pull request #314 from dougm/go-project

Add basic go project support
Provide support for running and switching between tests in Grails.
Merge pull request #316 from mbezjak/project-type-grails

Provide support for running and switching between tests in Grails.
Provide support for running and switching between tests in Gradle.
Merge pull request #317 from mbezjak/project-type-gradle

Provide support for running and switching between tests in Gradle.
Added persp-projectile.el to get perspective.el work along with projectile
Merge pull request #318 from danielwuz/persp-projectile

Added persp-projectile.el to get perspective.el work along with projectile
Introduce variable helm-projectile-sources-list.

The variable will allow a user to reorder or even alter the list of helm
sources to be used in `helm-projectile`.
Merge pull request #321 from ranulf/helm-projectile1

Introduce variable helm-projectile-sources-list.