[CLC-1448] Filter functionality for activities
Merge pull request #830 from yuhunglin/CLC-1448b

[CLC-1448] Filter functionality for activities
CLC-1471 Task date placeholder text too dark in IE10
https://jira.media.berkeley.edu/jira/browse/CLC-1471

Take two on this re-opened issue.
Merge pull request #831 from shacker/CLC-1471

CLC-1471 Task date placeholder text too dark in IE10
CLC-1179 Redo Sakai Sites proxy API to match CalCentral needs
Preparation for sharing formatted site data between My Activities, My Classes, & My Groups
CLC-1179 Add Sakai Announcements to My Activity
No changes to front-end code yet, & so the resulting UX does not match the newest design