Merged revisions 8752 via svnmerge from
https://matplotlib.svn.sf.net/svnroot/matplotlib/branches/v1_0_maint
........ r8752 | mdboom | 2010-10-13 14:01:59 -0400 (Wed, 13 Oct 2010) | 2 lines Fix is_decade() ........
Authored by: mdboom 2010-10-13
Parent: [r8752]
Child: [r8754]