Refs #254. Working on styling the download and export buttons. Unfortunatley these buttons are created from two different sources. To do this correctly, we probably need to write our image export button, similar to the csv export button. Refs #255 = added a title tage to the csv export button.
Fixing sidebar height.
Working on login/logout flow. Created a ost-header directive to handle this.  Refs #274
Working on getting ajax user login/logout working. Refs #274
Test change to readme
Revert "Test change to readme"

This reverts commit 5efcbcaf47fa3aa4678ebcb3ca200677ece0c453.
Added p97 logo to footer. Refs #249
Working on log in flow. Log in is working, now just need to do something on successful login/logout. Refs #274.
Merge branch 'dev' into staging