- update to 4.0.7:
* allow testutils.makeSuiteForClasses to specify a prefix for
test method names
* SpiderChart can have direct draw flowable labels
* fix and improve tests for python -mreportlab.lib.rl_accel
* fix barchart 3D stacked case & fix barchart valueAxis
reverseDirection behaviour.
* fix importlib usage in reportlab init, reported by Frank
Epperlein and others
* add value axes extraMinMaxValues as aid to parallel axes
* add styles str2alignment maps
left/right/center/centre/justify etc
* fix validators.isSubclassOf
* test ddfStyle as instance first in textlabels.py
* allow Pie Doughnut classes to control label class
- drop importlib.patch (upstream)

- pick the primary interpreter for doc generation even if it is not "python3"
* minor cosmetics in renderPM C extension and add fontSize setattr
* refactor transformation math and text2Path functionality
* allow Drawing.outDir to be a callable
* fix relative links within pdf broken
* Bug fix release to make really simple paras work OK
within PDF files. The tag has many more attributes
the `underlineProportion` attribute of ParagraphStyles.
incomplete ranges of rows to be repeated.
their split children when split
to be set
negative availableWidth
* ReportLab 3.0 now supports Python 2.7, 3.3 and higher.