Breaking changes.

We changed the CalligraphyConfig to be a builder pattern, this will require change. 1.1.0 -> 2.0.0 will not
work without modification.

Noted the changes in the readme.
Updated readme to reflect the changes to 2.0.0.
Changed dep to aar
Changed note about no jar now.
Changed CalligraphyConfig example to reflect current builder.
Added dlew as a Colaborator
changed to sInstance as pointed out.