log_in_user: extract user session setup from LoginController The next changeset will need to set up a user login session outside LoginController. 'log_in_user' extracted and added as a top-level function in kallithea.lib.base since the code doesn't need access to the current controller. Code refactored to take a User object instead of a username, to allow callers flexibility in how the user should be looked up.

syntax: glob
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tarballcache/

syntax: regexp
^rcextensions
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