Merge pull request #2909 from raydavis/raywip

CLC-3031 Add a word to the Double Major block message
CLC-4128 - Fix application of customized content in Add People modal window after use of Start OVer and Add More Users button
CLC-4212 - Modify example email and UID list in textarea and error message
CLC-4212 - Applied guest user notice, with FAQ page link, to error notification
CLC-4212 - Resolved JSHINT errors
CLC-4219 - Show/Hide previous appointments in L&S Advising card

https://jira.ets.berkeley.edu/jira/browse/CLC-4219
Merge pull request #2911 from christianv/CLC-4219

CLC-4219 - Show/Hide previous appointments in L&S Advising card
CLC-4212 - Removed redundant example input string
Merge pull request #2907 from redconfetti/CLC-4212-modify-people-addition-examples

CLC-4212 - Modify People addition placeholder and example error text in Canvas
CLC-4222 - Update gems - vcr

https://jira.ets.berkeley.edu/jira/browse/CLC-4222
https://github.com/vcr/vcr/compare/v2.9.2...v2.9.3
CLC-4223 - Remove drop-down arrow on active blocks

https://jira.ets.berkeley.edu/jira/browse/CLC-4223
CLC-4224 - "You have no active blocks at this time." - odd line break

https://jira.ets.berkeley.edu/jira/browse/CLC-4224
CLC-4212 - Updated to replace entire error message, rather than just modifying example input
Merge pull request #2915 from redconfetti/CLC-4212-remove-newer-error-message

CLC-4212 - Updated to replace entire error message, rather than just modifying example input
CLC-4226 - External links in block messages not opening another window or tab

https://jira.ets.berkeley.edu/jira/browse/CLC-4226
Merge pull request #2916 from christianv/CLC-4226

CLC-4226 - External links in block messages not opening another window or tab
Merge pull request #2914 from christianv/CLC-4224

CLC-4224 - "You have no active blocks at this time." - odd line break
Merge pull request #2913 from christianv/CLC-4223

CLC-4223 - Remove drop-down arrow on active blocks
Merge pull request #2912 from christianv/CLC-4222

CLC-4222 - Update gems - vcr
CLC-3031 Fix copy-and-paste error