matplotlib/matplotlib: v2.0.0rc1

This is the first release candidate for mpl v2.0 This release includes: A re-implementation of the way margins are handled during auto scaling to allow artists to 'stick' to an edge of the Axes Improvements to the ticking with log and symlog scales Deprecation of the finance module. This will be spun off into a stand-alone package Deprecation of the 'hold' machinery Bumped the minimum numpy version to 1.7 Standardization of hatch width and appearance across backends Made threshold for triggering 'offset' in ScalarFormatter configurable and default to 4 (plotting against years should just work now) Default encoding for mp4 is now h264 fill_between and fill_betweenx now use the color cycle Default alignment of bars changed from 'edge' to 'center' Bug and documentation fixe