wait cursor does not reset in several situations

[aboeckma]

Examples:

1. Search&Query config
   • open search and query
   • click on the configuration button ( the small one with the cog wheel and the save icon)
   • notice that a new window opens
   • notice that the cursor does not reset back to normal after the popup opened.
2. Search&Query delete
   • open search and query window
   • search for some string
   • click Delete Listed
   • A popup appears asking for confirmation
   • while this popup is active the cursor is a clock.
3. Rename config
   • click species → Configurations → rename
   • a popup appears asking for the new name
   • while the popup is open the cursor displays the wait symbol.

[westram]

related to #299

[westram]

• remove duplicate tickets #299 and #310
• copied description from there to here

[epruesse]

basically fixed, the cursor does change back now. the question is, should it even go to "busy" for modal windows or not?

[epruesse]

considering fixed, a better option for modal windows logged in #370 (lightbox type darkening of blocked windows)