Exclude .git-blame-ignore-revs to fix CI

.git-blame-ignore-revs is added so that  we can ignore revisions in .git-blame,  mostly code reformatting; but CI check that all files are explicitly included (or excluded) from manifest; so we need to list this one explicitly for travis to succeed.

MANIFEST.in

@@ -1,43 +1,45 b''
 include README.rst
 include COPYING.rst
 include LICENSE
 include setupbase.py
 include setupegg.py
 include MANIFEST.in
 include pytest.ini
 include .mailmap
 
 recursive-exclude tools *
 exclude tools
 exclude CONTRIBUTING.md
 exclude .editorconfig
 
 graft setupext
 
 graft scripts
 
 # Load main dir but exclude things we don't want in the distro
 graft IPython
 
 # Documentation
 graft docs
 exclude docs/\#*
 exclude docs/man/*.1.gz
 
+exclude .git-blame-ignore-revs
+
 # Examples
 graft examples
 
 # docs subdirs we want to skip
 prune docs/build
 prune docs/gh-pages
 prune docs/dist
 
 # Patterns to exclude from any directory
 global-exclude *~
 global-exclude *.flc
 global-exclude *.yml
 global-exclude *.pyc
 global-exclude *.pyo
 global-exclude .dircopy.log
 global-exclude .git
 global-exclude .ipynb_checkpoints