CLC-3610 Simplify cal1card feed structure
CLC-3616: Status popover: user with a blank popover
https://jira.ets.berkeley.edu/jira/browse/CLC-3616
Merge pull request #2380 from ctweney/clc-3610

CLC-3610 Simplify cal1card feed structure
Merge pull request #2376 from christianv/CLC-3616

CLC-3616: Status popover: user with a blank popover
CLC-3601: Status popover: Always show amount due, show warning / alert depending on past due amount
https://jira.ets.berkeley.edu/jira/browse/CLC-3601
Merge pull request #2381 from christianv/CLC-3601

CLC-3601: Status popover: Always show amount due
CLC-2442 Handle primary section enrollments with same course catalog ID
Many classes were not being shown correctly or were being skipped in GPA calculation. We're limited by source data issues, but this commit should fix the problems students have reported. Includes a couple of other fixes as well:
- Don't unnecessarily stringify waitlist position & section enrollment limit.
- Don't count unrecognized/unavailable transcript grades as an "A" letter grade in the GPA Calculator.
- Don't do the intensive JavaScript work to set up an Academics semester page unless the browser is actually going to the semester page.