State that is modified on any tab pushes into the url
Chord and instrument parameters are read from URL
Chord Details view now reads fingering parameter from url and displays
chord appropriately
Merge pull request #71 from ConchordanceProject/stateful-url

Stateful url
Fixed layout of chord fingerings - position was being offset for banjo
because of the absolute frets at the fifth string. Checking based on
relative frets instead
Merge branch 'move-client-files' of https://github.com/ConchordanceProject/ConchordanceWeb into move-client-files
Updated changes from gh-pages; removed unused old Tomcat folders (Metainf,
webinf); updated paths to angular templates; moved index back to root
level for gh-pages deployment