This allows us to import the app module without triggering
dependency detection

Also add is_installed() for checking if a dependency is installed and
disable_dependency() in case we dont want to use a dependency

- Move database migration to the logger module
- Dont depend on Gajim version for migration use PRAGMA user_version
- Refactoring of some methods in the logger module
- Dont use cursor object, if there is no reason
- Make some attributes and methods private

LOG_DB_FOLDER and CACHE_DB_FOLDER are equal to MY_DATA and MY_CACHE

- Remove old config dir migration
- Remove some unused config paths
- Rewrite configpaths.init()
- Simplify creating paths in check_paths

- init configpaths earlier so logging can access it to store debug logs
- First step for more consistency across Gajim when looking up paths

  Recommended usage for the future:
  app.configpaths.get()
  configpaths.get()

- Groupchats promote a vcard hash with presence

Refactoring:

- Dont delete groupchat contacts if they are maximized from the roster
- Roster and GroupchatControl use the same contact object

Philipp Hörist authored 6 years ago and Philipp Hörist committed 6 years ago

Fixes #8939

Philipp Hörist authored 6 years ago and Philipp Hörist committed 6 years ago

Fixes #8940

After a new proxy was added/removed by ManageProxies the combobox in
accounts/connections gets updated

Fixes #9022

in case the avatar is not changed by the user we must resend the still valid hash.
if we do not save the hash here, gajim advertises an empty photo element after publishing the vCard,
which removes the avatar for all receiving clients of the photo element update