Merge branch 'develop'

* develop:
  refined rending process such that we can have activity indicators
  Get an event when playing of song stops
  a bit ui improvement
  fixed bug in rest handling
  removed superfluous line
  improved handling of tempo
  No longer show invisible rests Optimize cropmark position
  refined layout on the screen
  suppress selection in editor while playing a song
  Now also the tune does a multiple selection Now follow Q: directive while playing Now can stop playing
  initial step for playing from the harp note model also highlights partially while playing
recompiled
Merge branch 'develop'

* develop: (31 commits)
  bumped version
  now can handle empty lines in input
  now can set debug level and auto refresh introduced a systemstatus
  started to out factor some literals improved error handling with respect to undefined durations
  improved control about logging
  now we have tuplets
  harp note player now respects ties
  fixed play selection. Due to the bug in sorting, the duration of the play was not correct
  Now Ties and Slurs are properly rendered - even if the player does not handle it
  now slurs and ties appear in the music and layout model
  Fixed reporting tom abcjs: now shows message line, column
  rake deploy now delivers a minimized build.js
  Rake now compiles a a deployment folder which should be copied to the web server No longer use icons in the toolbar fixed message indlogin
  now dsave saves all excepts according to the print configuration
  let the print-configuration select the voices to consider for vertical layout
  Now have a creation note on every sheet Improved version management Slightly refined layout
  now all commands are converted to the command-controller approach
  initial version of command-controller and command definitions
  now we have dropbox in two flavors - dropbox app folder only  and dropbox - full access
  rake file now supports backup update to abcja 1.12
  ...
Merge branch 'develop'

* develop:
  built deployment files
  removed command input - now replaced by console optimized width of harpenotepreview bumped version
  integrated jqconsole
starting from scratch now delivers a tune which renders without errors
player now throws user understandable error messages
Merge branch 'hotfix/demo' into develop
now implemented an experimental approach to render the tunes in an extra window.

* Allows to have an audience only see the tunes
* does not block the ui thread
* initial approach to send commands between windows
renamed Dacapo to Goto
now we also see synchpoint also get synclines
refactored Jumpline such that Default.layout does it all using path;
The engined no longer deal with Jumplines
Optimed layout of jump lines.
optimized handling of repetitions
now handle variant endings
note bound annotations
optimized handling of path; now arrows are filled.
sheet marks are now printed as big lines
subflowlines
optimized pitch of pause
refined note bound annotation positioning
refined SynchPoints handling such that first note in SynchPoint is reference for flowline and note bound annotation
initial lyrics support (fixed,  blank lines not shown in raphael)
Sheetmark at G,
optimized sheets marks