CLC-2408 Guard against null Sakai site group list in My Activities
CLC-2438 - “My Academics” breadcrumb links to Dashboard - Firefox
https://jira.media.berkeley.edu/jira/browse/CLC-2438
CLC-2439 - Format of units on course page disagrees with format on semester page
https://jira.media.berkeley.edu/jira/browse/CLC-2439
CLC-2443 - Act-as submit form allows empty UID with Enter key
https://jira.media.berkeley.edu/jira/browse/CLC-2443
Merge pull request #1515 from christianv/CLC-2438

CLC-2438 - “My Academics” breadcrumb links to Dashboard - Firefox
Merge pull request #1516 from christianv/CLC-2439

CLC-2439 - Format of units on course page disagrees with format on semester
Merge pull request #1517 from christianv/CLC-2443

CLC-2443 - Act-as submit form allows empty UID with Enter key
Merge pull request #1514 from raydavis/raywip

CLC-2408 Guard against null Sakai site group list in My Activities
CLC-2427 Separate grade transcript query from enrollments query