0.1.3

• add support to move element into another group (#5, by @bookis)
• add the no_rank? method (#5, by @bookis)
• remove in memory operations with the collection when calling move_to

0.1.2

• fix gem specification
• update changelog format

0.1.1

• Update license year
• Let rubygems be happy to have an updated version

0.1.0

Initial Release