Added center and frame arguments for pie-charts
Added test for frame and center arguments on ax.pie()
Fixed pep8 conformance
Improved interaction of center and frame arguments
Added missing baseline image for pie chart test
refactor ftface_props example

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
fix wrong numerical value for ft2font.VERTICAL

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
use identifiers from ft2font module in ftface props example

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
Rotation angle between 0 and 360.

Also add a test for this
Merge pull request #3677 from jenshnielsen/fix_text

TST : Rotation angle between 0 and 360.
Merge kpalin:v1.4.x to master.  Added pie kwargs

ENH : add center and frame kwargs to pie

Conflicts:
	lib/matplotlib/tests/test_axes.py

whitespace conflicts
DOC/PEP8 : details related to PR #3433
Merge pull request #3678 from tacaswell/pie_doc+pep8

DOC/PEP8 : details related to PR #3433
use _fast_from_codes_and_verts in transform code
Merge pull request #3681 from jbmohler/use_fast_from_codes_and_verts

PRF : use _fast_from_codes_and_verts in transform code
Merge pull request #3671 from jenshnielsen/fix_3669

fix for #3669 Font issue without PyCXX
Merge pull request #3630 from thisch/ftprop

refactor ftface_props example