Add fallback to percent_change_display (fixes #89)

2f778dc - R. Miles McCain - Bump version to v0.7.3
e0c1653 - R. Miles McCain - Add fallback to percent_change_display (fixes #89)

Small bug fixes and design improvements

c86192d - R. Miles McCain - Improve a17t colors
775c105 - R. Miles McCain - Bump version to 0.7.2
be85c0a - R. Miles McCain - Update and trim dependencies
70e1af1 - R. Miles McCain - Fix division by zero error

Minor image optimizations

6afea91 - R. Miles McCain - Bump version
7a4c892 - R. Miles McCain - Remove background from favicon
9b50b1e - imgbot[bot] - [ImgBot] Optimize images (#87)

Incremental interface improvements and bug fixes

52a18d2 - R. Miles McCain - Small visual improvements
8aaf312 - R. Miles McCain - Bump version
ede0690 - R. Miles McCain - Format code
a42455c - R. Miles McCain - Add browser icon
547a84f - R. Miles McCain - Update screenshots
f56ea99 - R. Miles McCain - Add demo data command
4cea5d2 - R. Miles McCain - Add additional icons
e4f09b4 - R. Miles McCain - Ensure times are always correct
cc094fe - R. Miles McCain - Add icons to dashboard
ac5c743 - R. Miles McCain - Update dependencies

Fix django-redis-cache `six` error

963db18 - R. Miles McCain - Bump version
748fb76 - R. Miles McCain - Bump version
d93a698 - R. Miles McCain - Update django-redis-cache

Fix sidebar version display

ca9ee2f - R. Miles McCain - Bump version
9146c88 - R. Miles McCain - Show Shynet version when envvar is true

Rollback prerelease allowance

8b1034e - R. Miles McCain - Fix prerelease usage

Allow version hiding, update dependencies

a8fd263 - R. Miles McCain - Bump version
31fa3d5 - R. Miles McCain - Update dependencies
13229f6 - Sudipto Ghosh - removed unused import
101d26d - Sudipto Ghosh - added SHOW_SHYNET_VERSION env var to control display of version info

Collaboration fixes

c524325 - R. Miles McCain - Bump version to v0.6.5
4a07ab8 - R. Miles McCain - Prevent multiple emails from pointing to same collaborator (fixes #78)
c8dead4 - R. Miles McCain - Prevent services from showing up twice on homepage

Improve email defaults

4a06357 - R. Miles McCain - Bump version
29ac82a - Nicholas Bentley - smtp ssl/tls fix