Bump project version to 0.3.0

Version 0.3.0 contains handling for additional path-based version
specifiers in yarn.lock.

Signed-off-by: Taylor Madore <[email protected]>

Bump to version 0.2.0

Signed-off-by: Adam Cmiel <[email protected]>

Prepare for 0.1.3 release

Signed-off-by: Adam Cmiel <[email protected]>

Add .dependencies dict on Package class.

Signed-off-by: Dan Sully <[email protected]>

Prepare for 0.1.1 release

Signed-off-by: Adam Cmiel <[email protected]>

Prepare for pyarn-0.1.0 release

Signed-off-by: Athos Ribeiro <[email protected]>