Selecting multiple rows & a list correctly creates the selected text into a list

Also changed the labels on the buttons to better match the action they are completing.

Closes #8057

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See !2023

It needed to be more flexible in how we set the target text or element.

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

write_ was renamed to create_
modify_  was renamed to update_

So now in update action we have next code

def create
  can?(current_user, :create_issue, @issue)
end

def update
  can?(current_user, :update_issue, @issue)
end
Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

* move votes block to participants
* make smaller font in sidebar

* lighter color for comments count
* better UI for issue assigee.milestone block

Make the following changes to deal with new behavior in Rails 4.1.2:

* Use nested resources to avoid slashes in arguments to path helpers.

viewports for issues and merge requests

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

* return edit/close buttons to old position (right of title)
* make 'Issue #1' header smaller
* move mr commits to separate tab
* change inline/side diff switcher to buttons from tabs
* make issue sidebar start with dicsussion block
Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>