Set version number to 1.2 (dev)
Use -f option to rm for uninstall target

* In order to avoid errors when uninstalling caused by files not
  having been installed.
Remove cycling key maps (e.g. use o key to cycle between oscs)
Removed underline from certain parameter box names

* Namely those who now are not reached by cycling.
Fix erroneous step range for arp tempo parameter

* Using cursor to scroll would work, but the value sent to the Blofeld would
  be wrong. Using scroll/inc/dec would result in a max value of 127, and
  again the value sent to the Blofeld would be incorret.
* Seems to be something odd still, sometimes the value is off by one
  parameter (not ui) step value. Could be a rounding error. Still better
  than it was before this commit.
General cleanup: function headers and comments

* Use consistent style for function headers.
* Add comments to all function headers.
* Clean up some comments.
* Whitespace cleanup.
* Put include guards in all .h files.
* Remove some unused stuff.
Extracted extern variables/functions from blofeld_ui.c to midiedit.h
Fixed order of parts in Blofeld UI
Fix problem of parameters with inverted ranges scrolling the wrong way
Fixed osc Limit WT and Sync toggleboxes

* Also moved widgets around so that oscillators give a more similar
  visual impression.
Restructure osc boxes to use one table instead of several v/hboxes
Checked signal handler return values and removed TODO
Fixed another TODO
Fix TODO: add all fds from MIDI to gdk_input_addr
Replaced two TODOs with ordinary comments, as they are future options
Set version number to 1.2 for release
Merge branch 'dev'