3 commits

Author	SHA1	Message	Date
Joseph Schorr	44ff85d044	Remove migration (temporarily), fix a broken test, and make the aggregate size calculation use the entire image ancestry (for now).	2015-03-17 12:13:01 -04:00
Joseph Schorr	f8a917ec26	Fix test	2015-02-10 22:02:39 -05:00
Joseph Schorr	893ae46dec	Add an ImageTree class and change to searching *all applicable* branches when looking for the best cache tag.	2015-02-10 21:46:58 -05:00