MOC: Adding flexibility #605

Following #602 I'm opening this multiple feature request:

1. Include Calendar notes in the MoC 'search'.
2. If a calendar note is found, include the surrounding text in the MoC, not just the date of the calendar notes. (Similar to what's displayed by the search function.)
3. Verify that the Click to Refresh feature is working on the plugin.
4. When making a MOC for term, ensure it also includes @term and #term as well.