Fix indentation error revealed by 2.6 testing
Handle 2.6 quirk with extra trailing NEWLINE marker
Add gen_for as a python2.6 token, vs. comp_for (or equiv)
Mux on str behavior for xml package from python 2.6
Handle python 2.6 context managers (with_item vs. with_var)
Merge branch 'py26'
Bump version for python2.6 support