Fix module header
Add Orage and khard to client apps

Fix #122
Shorten links
mention contactquery.c in docs

see #25
fix link definition in docs
Rename "API" to "Config"

This is not actually a programming interface.
Continue syncing pairs if one pair crashes

Fix #121

Vdirsyncer used to exit as a whole when one pair failed to synchronize
due to connection errors. The new behavior actually tries to synchronize
other pairs before exiting with a nonzero status code. The old behavior
can be restored with the --fail-fast flag.
Prefetch less
vdir: Clarify how many items are allowed in one file
Merge pull request #123 from untitaker/vdir_multiple_events

vdir: Clarify how many items are allowed in one file
Fix broken link
Stop using multiprocessing.dummy.Pool

- Custom job queue with workers based on threads.
- Collection discovery is now done in a separate thread. Due to the
  gained flexibility, we could do the sync actions in separate threads
  too?
- The processes parameter has been removed, the related new option is
  only available on the CLI.
Add testcase
Move exception handling into context manager
Also clarify for contacts
Improve conflict_resolution docs
Merge pull request #126 from untitaker/issue124

Stop using multiprocessing.dummy.Pool
Change context manager to normal function
Remove processes param completely from docs
These dots annoy me