fix xml round-tripping test
iwyu
iwyu
remove big endian support - closes #2313
fix compile of graphics.hpp
text-properties : make fill and halo-fill expressions
collect expressions from format_properties
fix format_node::to_xml - attach format_properties to new_node
update text/formatting/format
tex/formatting/format fix add_expressions
sqlite plugin: use mapnik::geometry_container alias
refactor spirit grammars
Merge branch 'master' of github.com:mapnik/mapnik into grammar-refactor
add missing files that instanciate grammars for python bindings
try 4 cores
JOBS=6 for clang++, 2 for g++
travis: even more aggressive JOBS
Merge pull request #2314 from mapnik/grammar-refactor

Grammar refactor
return code 0 to gracefully exit if python bindings are not available
fix import