TODO for locking
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NICE TO HAVE
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* put quotes around user names as well as around lock names when we error.
* support cancellation during lock/unlock.
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* Questions:
* Should propedit and propset reject to set a property an a file with
svn:needs-lock set?
* how do locks relate to dump/load? file as an enhancement?
* Stuff to document in book:
- 4 new hooks
- 'lock' and 'unlock' commands, svn:needs-lock property.
- svnadmin lslocks, rmlocks, lock
- svnlook lock
- 'svn info URL'
- 'svn st -u' additions
- new 'svn up' and 'svn commit' behaviors w.r.t. locktokens
- two new bdb tables in BDB section.
- update the description of autoversioning in appendix C!