disable more useful msg in disk i/o error case
additions to contributors list

- Volker Jansen
- myself
Merge branch 'master' of https://github.com/sobjornstad/anki
fix media test
remove unused functions
display more feedback when syncing media

deletes in particular take some time for the server to process, but
don't require much bandwidth, leading to the progress appearing to
have pause when content is actually being processed

this also gives the user an idea of how long the process will take to
complete
we need to count up for downloads

as we're streaming changes we don't know the total amount of downloads
required
ignore >100MB files
Revert "remove urllib.unquote() step in editor"

This reverts commit 23cec2d5e994110665862815add56c4a6e7d7791.

without other changes, this causes double escaping when editing
limit url unquoting to image tags

this prevents random text like %20 in a field from being converted
when note is saved
we shouldn't encode to utf8 when unquoting
don't allow tags of different cases

Previously they were allowed to be added, but all searches and
operations treated them as case-sensitive, creating an inconsistency.
The new implementation will change new tags with different case than
existing ones to the version currently in the database.

This may cause some slowdown in collections with a very large number of
tags since the only way to do this at the moment is to scan through
every one of them. Changing the format tags are stored in in the future
may be useful.
Merge branch 'master' of https://github.com/dae/anki