Simplified update_definitions. Running update on demand only since now (speedup, and no data loss when hacking own definitions on external machine.

Signed-off-by: Daniel (dmilith) Dettlaff <dmilith@verknowsys.com>
Implemented support for multiple applications installation. For exmple, you don't need to define a list to install multiple bundles at once.

Signed-off-by: Daniel (dmilith) Dettlaff <dmilith@verknowsys.com>