v3.0.0

v3.0.0 (2019-02-02)

Major:

• Removed method isFlagOrAliasExists, please use isFlagExist
• Renamed method isFlagExists to isFlagExist, and second parameter of the method is changed
• Will be thrown CongifErrorException if it is passed wrong config in constructor.
• Method getArg($key) returns only true or false when filter is flag.

Patch:

• Fixed bug of using default empty values from config.