sqlite: add more debug output
fix height clamping in image_view and grid_view - closes #1940
cpp_tests: no need for dynamic_cast
handle lacking return value handling caught by coverity
fix handling of opacity when rendering svg with cairo - closes #1943
optimize svg rendering by moving bbox calc only needed by gradient rendering into gradient code
add testcase for #1944
fix svg parser to ignore empty groups - closes #1944
Avoid truncating 64 bit return values on 32 bit platforms
Drop bogus assertion

Comparing to sys.maxint makes little sense as all it is doing is
testing the size of python's integers. The following assertion tests
that we are getting the correct return value anyway.
Numeric return results are now long rather than int
Stop the osm input plugin truncating ID values on 32 bit platforms
Merge pull request #1946 from tomhughes/osm

Stop the osm input plugin truncating ID values on 32 bit platforms
Merge pull request #1945 from tomhughes/python

Fix numeric truncation issues in python bindings
Avoid rounding errors comparing envelopes
Merge pull request #1948 from tomhughes/python

Avoid rounding errors comparing envelopes
Accept a few changes to visual test xml via harfbuzz branch - refs #1950
Add a few expected images
link mapnik first (needed static linking on linux)
shapeindex: if statically linking then bring in mapnik dep libs