Release Name: 0.1.3

Notes:



Changes:
== UUIDTools 0.1.3
 * fixed issue with UUID#raw attempting to call protected class methods
== UUIDTools 0.1.2
 * fixed variant method
 * added valid? method
 * changed timestamp_create method to allow creation of UUIDs from
   arbitrary timestamps
== UUIDTools 0.1.1
 * changed helper methods to be protected like they should have been
== UUIDTools 0.1.0
 * parsing and generation of UUIDs implemented