Revert "Revert "init weighted toggle on page load and make calculated gpa font size smaller in gpa panel""

This reverts commit 71155e08c090eed856c488480972e913edace643.
Revert "shorten headers for grade table"

This reverts commit 3b2ca62d448b1d1ecbab11f7936166463e51029f.
update version to 2.1.5 and add change log entry