Result of misspellings run.

Most of these are comments but a few are strings for users.

Might be an idea to run this from time to time:
https://github.com/lyda/misspell-check

It runs mostly clean now.
Merge pull request #3243 from lyda/misspellings

Result of misspellings run.
Merge pull request #3242 from murank/fix_failure_of_checking_merge_requests

Fix failure of cheking a merge request after conflict.
Fix project_limit being ignored on signup
Fix bug with downgrade permissions on first project assigment to team
Add control of action in project to team assigment
show project description in project listing on dashboard
Rename project_head partial to settings_nav
Improve usability of project edit page
Abilities added to /user and /sign_in requests
Return own tab for wall. Improve Wiki nav. Removed attachments listing page
feature: wiki -> new page
Move snippets to own tab as feature. Make it disabled for new projects by default
reorder features list in project -> edit page
fixed check for snippets module enabled
Refactor: removing duplicate code.
Fix timeout error while showing the very large repo like git repo.
Fix travis failed randomly by timeout.
API docs updated
Fix spec errors.