Update installation.rst

added db migration step and mailbox setup to installation notes
Minor alterations and clarifications to @fsboehme's fantastic addition.
This probably should have been using explicit references anyway.
Prevent ImapTransport from raising exception when no messages are available.  Fixes #24.  Release 3.4.1.
Adding share/ to gitignore.
Moving 'message storage details' page into appendix
Moving settings into appendix, too.
Reordering imports to match style guide.
Wrap added \Deleted flag in parentheses.  Fixes #23.

Apparently the IMAP specification expects that the +FLAGS argument be
surrounded by parentheses; although some e-mail backends (like Gmail)
will accept the +FLAGS argument without surrounding the \Deleted flag
in parentheses, many (reasonably) follow the specification much more
closely.  This problem was first noted in report #23.

Searching for other examples of mail deletion, I've found several
Stack Overflow articles in which people are attempting the same task,
and each either uses `imap.store` without surrounding '\Deleted' in
parentheses, or uses `imap.uid` *while* surrounding '\Deleted' in
parentheses:

* http://stackoverflow.com/questions/1777264/using-python-imaplib-to-delete-an-email-from-gmail
* http://stackoverflow.com/questions/3180891/imap-deleting-messages
Decode from ASCII with replacement if errors are encountered while gathering text.  Fixes #20.
Version 3.4.2a1
Cleaning up management commands for PEP-8 and consistency.
Version 3.4.2a2.
Version 3.4.2.
Add some spaces between constants and imports.
Add translation support to field names and help texts.
Add file header and dummy HTML method.
Add property to fetch HTML body message.
Extracts inner method to process multiple content types.
Fix test methods for new accessors.