(refs #32)Add plugin system initialization

(refs #32)Separate Plugin interface and implementation

(refs #32)Switch JavaScript processor to Rhino from Nashorn because GitBucket should work on both of JDK7 and JDK8

(refs #32)Implementing repository action processing

(refs #32)Add plugins page into the system admin tools

(refs #32)Improving plug-in API

Change word to clear milestone the same as GitHub

Make icon-remove-circle of dropdown menu unclickable

Show number of conversations

(refs #32)Add JavaScript API

Merge remote-tracking branch 'origin/plugin-system' into plugin-system

(refs #32)Provide generic layout and context to custom actions

(refs #396)Apply syntax highlight correctly when update comment

(refs #32)Add JavaScript Console

(refs #32)Enable menu icon which is injected by plug-in

(refs #32)Example of custom action extension

Merge branch 'master' into plugin-system

(refs #32)First impression of the plugin system

Fix nested tags.

Add a badge which shows number of pages

(refs #378)"Delete branch" button is displayed for only merged pull requests

(refs #378)Closed but not merged pull requests should be re-openable

Merge commit Tag 2.0 'db5395d' into add-features-to-ldapauth ...

Conflicts:
	src/main/twirl/account/edit.scala.html

Fix code style

(refs #380)Close stream certainly

Fix "New pull request" button style

Merge remote-tracking branch 'origin/master'

(refs #382)Remove unnecessary comment

Use "Conversation" instead of "Discussion" ...

Github uses "Conversation" now.

(refs #382)Exclude duplicated commits from applying issue comment