 Bitbucket deprecated its API v1.0: update all endpoints to API v2.0 (#352)
 Bitbucket deprecated its API v1.0: update all endpoints to API v2.0 (#352)

* Bitbucket deprecated its API v1.0: update all endpoints to API v2.0
(pull_requests wasn't updated)

* Fix issue of approve_pull_request and unapprove_pull_request method

* Fix github create pullrequest comment issue

* Fix bitbucket create pullrequest comment issue

* Update bitbucket API v2 pullrequest format

* Update bitbucket API v2 pullrequest format

* Rollback bitbucket.rb and parse new bitbucket comment format

* Rename position to line_to

* Fix duplicate pullrequest comment

mmozuras/pronto,prontolabs/pronto