* remove autocommit section, missed in future engine merge
* remove implicit execution section, also missed
* rewrite "transactions" section to fully discuss
"commit as you go" vs. "begin once", remove all references
to "future"
* fix up "understanding DBAPI autocommit" to be a little more
clear
Pushing this straight up, we can attend to remaining typos /
edits ad hoc
projects / thirdparty / sqlalchemy / sqlalchemy.git / commit
