fix broken tests
CSS:exchange css resource path to relative path from aboluste path
Merge branch `refactoring/post-receive-hook` of kjkmadness/yobi

from pull request 358
Merge branch `issue/css-image-path` of insanehong/hive

from pull request 394
pullRequest: improve PullRequestEventActor

1. separate PullRequestMergingActor, RelatedPullRequestMergingActor
2. using PullRequestMergingActor at regist pullRequest and reopen
pullRequest
3. using RelatedPullReuqestMergingActor at pushed code and merged
pullRequest
4. add pullRequest property in PullRequestEventMessage
pullRequest: fix edit form error
Merge branch `improve/pullrequest` of alecsiel/yobi

from pull request 393
notification: change the message for pushed commits.
pullrequest: fix 'mergedCommitIdTo' appropriately
pullrequest: add alternate object direcotry
Main: add new commit event icon of Notification
Merge branch `bugfix/pullrequest` of alecsiel/yobi

from pull request 398
Merge branch `enhancement/notification` of kjkmadness/yobi

from pull request 397
Main: change pull-request Event color
Merge branch `bugfix/pullrequest` of kjkmadness/yobi

from pull request 386
user: Fix avatarUrl to support application.context

application.context should be taken into account while computing the url
to user's avatar.
project: Fix projectLogoImage to support application.context

application.context should be taken into account while computing the url
to project logo.
user: Consider application.context

Consider application.context while getting reserved word from routes.
test: Set application.context to "/"
Use routes to get url to ZeroClipboard