1.4.20
remove comment about ExceptionInfo attributes being private.
Simplify and speed up io.capture
remove trailing whitespace everywhere
do some more micro-optimizations in exception info handling
remove unused imports
bump version to final 1.4.20
move down py/impl/XYZ to py/_XYZ
merge in apipkg fixes
always use builtin callable when available (2.x and py3.2+)
fix python33 path handling errors
Changes between 1.4.12 and 1.4.13.dev ==================================================
added test for xml escape with non-unicode string
slight adjustments