add darwin prefixer and launcher
re-add osx pyinstaller build scripts
separate development deps

so we can use them with "pip install -r requirements-dev.pip"
syntax fix for python 2.6
fix osascript invocation
add changes description
update pyinstaller install
add leap.common to requirements
change development repo to leapcode
fix docstring
Merge remote-tracking branch 'kali/feature/osx-eip-rewrite' into develop