expressions : add ```lenght()``` unary function
Change text-margin option to margin.
text - add ```repeat-wrap-char``` parameter default:false (#2333)
Merge branch 'min-dist-compatibility' of git://github.com/MapQuest/mapnik into MapQuest-min-dist-compatibility
Merge branch 'MapQuest-min-dist-compatibility'
revert accidental removal of 'wrap-before' expression
disable AA when warping images #1913
remove unneeded inclusion of box2d.cpp in shapeindex
add more to changelog
unmask now fixed raster warping test - amends db39528231 - refs #1913
travis: try increasing swap
Revert "travis: try increasing swap"

This reverts commit e95d863fd467a6b41750a83388121e3ca391d3c8.
travis: fewer jobs to try to work around oom
add support to tiff reader for reporting alpha
remove debugging line
finish removing ancient reduced size grid rendering pathway - amends f3a824c2cc1d9
use expectation operators parsing attributes #2390
fix feature_test
add length method
format