Put dropdown no toggle into correct module.
feat: Add methods to github api for branch details.

Add methods to get repo details, create pulls, get branches, and compare commits.
Request repository details to be a part of the repo model.
feat: Add panel for converting issue to pull.
Fix issue found in code review of convert to pull.
Merge branch 'dev/convert_to_pull'

Conflicts:
	src/app/issue/issues.scss
	src/app/services/repos_service.js
	src/common/github_api/github_api.js