Minor Bug Fixes and Improvements

*Minor bug fixes and improvements, including:*

1. Menu touch events. (Tested on touch screen device.)
2. Favorite links with spaces in the collection title now work.
3. Tour stop with null descriptions (null when initially created) now
render in tours without causing the tour to hang.
4. Link cursor and tooltips added to the following pseudo-buttons on the
canvas:
- Edit Timeline
- Edit Exhibit
- Edit Artifact
- Copy Timeline
- Paste Timeline
- Add to/Remove from Favorites
Merge branch 'master' into new-menus
UI Updates: Tooltip Wording Change

Changed "Edit Exhibit" tooltip for pencil icon at top of exhibit to
"Edit Exhibit or Add Artifact" per Lori and Roy, to help indicate where
artifacts are added.
UI Updates: Add Create Collection to Menus

Add Create Collection option to the Create menu in the top right menus.
UI Updates: Menu Change

Per meeting today, hide Curate/Create button in top right menus if user
does not have edit rights.