support of "by_launcher"/"by_category" arguments and expansion of ~ and Windows environment variables

v1.0.5

• adding support for launching YAL with the arguments:
  • "by_launcher" - opens quickpanel and allows to select a launcher
  • "by_category" - opens quickpanel and allows to select an item category (url, file+sys, file+subl)
• added "by_category" to menu and command palette ("by_launcher" was already there)
• added support for expanding elements in path names (~, ~user, %USERPROFILE%, %APPDATA%, %LOCALAPPDATA%, %PUBLIC%, %WINDIR%, %SYSTEMROOT%, %TEMP%, %TMP%, %USERNAME% - ~/~user works on Windows as well)
• switched to a development branch on Github for developing new features