Push version `a0.2.2`

Refactored most functions (d0de6f4c3e9bf05763237a7b20f6021dba094b84)
Remove unused argument parser function (3d617940e83808c72749f2a0f6b9dfaf148e5058)
Fixed `appname` being displayed with full path (9a97c37c58ad96553fec0e89506647dce51c4507)
Improve helper functions (dc2b2a318e3056166add01d20b0a34c279003add)