initial prototype of ruby-graphviz dynamic org charts

still to do:
layout management
printing & sizing
performance
consider d3 graph related layouts (isntead of tree layout) for org context concept, separate from org chart needs
commit of a basic orgchart that can be navigated (graphviz)

dynamic construction of graphviz dot chart
dynamic URLs for navigating structure and showing people details
some more complex and experimental layout edges (commented out for now)
add database.yml to gitignore
stable org chart version allowing naviation from node to node
added work dir to gitignore
cleaned out passwords
readme cleanups
toggle for layers shown in org chart
release notes cleanup
printable org chart
cleanup of printing chart and misc improvements

browser detection for to fix object tag inconsistencies
added location and floor people attributes
cleaned up tests
pretty splash page, disabled d3 budget chart
randomized names in dev database, replaced splash screen images with anonymized versions
Merge branch 'feature/improved-org-chart' into develop

* feature/improved-org-chart:
  randomized names in dev database, replaced splash screen images with anonymized versions
  cleanup of printing chart and misc improvements
  printable org chart
  release notes cleanup
  toggle for layers shown in org chart
  readme cleanups
  cleaned out passwords
  added work dir to gitignore
  stable org chart version allowing naviation from node to node
  add database.yml to gitignore
  commit of a basic orgchart that can be navigated (graphviz)
  initial prototype of ruby-graphviz dynamic org charts