Make reindex option more prominent

[russ0519]

Right now it's a button on the instasearch window. It is not immediatelly obvious what it does, and I had to find this issue tracker, find an old issue and only then was I able to find it.

I suggest making it more prominent (perhaps context menu when you right click on the project, somewhere in project settings, or somewhere in preferences.

Also perhaps cleaning a project or rebuilding a project should reindex it.

[zaerald]

We can make this feature more prominent by having it included in the context menu of the InstaSearch View, as for myself I haven't noticed the feature until I saw this issue.