Merge branch 'master' of https://github.com/diegolagoglez/libclipp
Solved a problem with 'type()' method.

Also, added a method to get if there is a var assigned.
Solved a problem with: OptionDefinition::type(...)
Merge branch 'master' into update-var-feature.

Solved a problem with OptionDefinition::type(...).
Implemented basic support for variable assignment.

TODO:
 * Test this changes with all variable types.
 * Check if it works with char** instead of string*.
 * Check what happes when using a double instead a float.
 * More tests.