as by and expire with and

update: ubercolorizer is back. Thanks Winnie!
update: added ability to prevent any editing of a paste, disabled by default.
update: added paste editing version history, click version labels to view specific version.
ugh, it's starting to look like a wiki...
update: paste can be now reverted to any previous version, provided it didn't expire yet.

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disclaimer blah-blah, © by, ah's and oh's send to, highlighting by geshi and winnie colorizer.