Add copy/paste for delegate icons

Right-click delegate's name in the motion editor to see a context menu
with "Copy Icon" or (if one has been copied) "Paste Icon"
Merge branch 'ft-copypaste-management' into newfeatures-v3.2
Add time presets for easier access

Resolves GH-4.
Merge pull request #5 from WChargin/ft-preset-time

Add time presets for easier access
Allow cancelling "Process Motions" without clearing floor

Resolves GH-7.
Merge branch 'ft-gh-7-clearfloor' into newfeatures-v3.2
Fix the for-against mechanism

Fixes GH-6.
Merge branch 'newfeatures-v3.2' into release-v3.2
Allow medium size icons
Add for/against speakers to public display

Resolves GH-8