first work saved
merge erratas : code added
unfinished package sync code
proof of concept
regenerate repodata, always compute package differences when the channel is not a new one
typos and shameful coding errors fixed
more fixes for typos and shameful errors
adding debug information, fixed and improved logic
test not conclusive, need to change listing methods and errata population method
cleanup
errata cloning fix
package listing fix
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typos fixed
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date to datetime conversion
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