doc/web: Updated and extended documentation. Updated description of subcommands aliasdelete and catchalldelete. Added description of subcommands listaddresses, listaliases, listrelocated and listusers.

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−.. |curr_vers_rel_date| replace:: The most current version of vmm is 0.6.0,
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− released on 28 June 2012.
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−.. |rel_hist| replace:: Older releases are listed in the :doc:`release_history`.
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−