rebaseline_server: apply ignored-tests.txt within rebaseline_server, not just on the bots

(SkipBuildbotRuns)
BUG=skia:2514
NOTREECHECKS=True
NOTRY=True
R=rmistry@google.com

Author: epoger@google.com

Review URL: https://codereview.chromium.org/287623006

git-svn-id: http://skia.googlecode.com/svn/trunk@14740 2bbb7eff-a529-9590-31e7-b0007b416f81
7 files changed