* Use hash based storage for last used directories instead of a key/value for each type
* Explicitly declare certain operations as sensitive and follow the "Remember Last Database" setting for those.
* Introduce database backup directory location (close#6619)
* Fix#3790, shares now use the standard FileWatcher class to detect remote file changes using checksums and file system triggers.
* Fix#3895, macOS file selection no longer hangs the app.
* Restore saving of KeeShare settings accidentally removed by 596d2cf
* QFileDialog returns UNIX paths, even on Windows. This patch converts what QFileDialog returns to the native path format.
* Improve const correctness
* Avoid imposing file extension on Linux
* This patch improves things like unneeded passes by values, missing const qualifiers, ugly copies because of variable reuse and consistency in variable names.
This patch aims at reducing the number of copies for obejcts that could
be referenced rather than copied, because they're not modified during
the computation.
* Add source folder keeshare for sharing with corresponding define WITH_XC_KEESHARE
* Move common crypto parts to src/crypto/ssh
* Extended OpenSSHKey
* Move filewatching to own file (currently in two related classes DelayedFileWatcher and BulkFileWatcher)
* Small improvements for style and code in several classes
* Sharing is secured using RSA-Keys which are generated on demand
* Publisher signs the container using their private key
* Client can verify the signed container and choose to decline an import,
import only once or trust the publisher and automatically import all
data of this source henceforth
* Integration of settings into Group-Settings, Database-Settings and Application-Settings
* Introduced dependency QuaZip as dependency to allow combined export of
key container and the (custom format) certificate
