CLC-3815 Drop aged feature flags
Merge pull request #2578 from raydavis/raywip

CLC-3815 Drop aged feature flags
[CLC-3797] - Fixed progress bar issue in IE 11
[CLC-3797] - Fixed progress bar issue in IE 11
Merge pull request #2580 from richcreationsrc/CLC-3797

[CLC-3797] - Fixed progress bar issue in IE 11
CLC-3696 Followup increasing test coverage on Cacheable
CLC-3696 Even more cacheable test coverage
CLC-3816 More cacheable test coverage, and fix nil read bug
CLC-3816 Check the jsonification behavior of nil