First draft of the launcher
Calculate workdir in the launcher, set PythonHome to that

It will look for dependencies in PYTHONHOME/lib
Add python launcher that launches recurring updates
Merge updates directory

Also, sets the env for thandy to work properly.
Set THANDY_HOME and properly copy files from the updates dir
Try new rename to tmp and then remove update process
Make the launcher.py use the local repo
Add per platform bundle name to the launcher
Ensure events server from the launcher and change the renaming for windows
Make running Thandy configurable
Log to a file always
Improve "bundlelization" by setting PYTHONPATH and PYTHONHOME properly
Set program name for python to act as we expect it to
Only setenv on non-windows systems
Add CHANGELOG
Use the system qt on Ubuntu
Update launcher icon: jumping guy -> rainbow mask.
Merge remote-tracking branch 'ivan/feature/3313_rebrand-client' into develop
Log to bitmask.log instead of leap_client.log
Update launcher.py to use leap.bitmask