Added WebDAV framework
akeeba/backup-core#468
Merge pull request #4 from akeeba/feature/468-cloudme

Feature/468 cloudme
Leftover JVERSION constant
Fallback to ANGIE, not ABI (since ABI is deprecated and will eventually be removed)
Docblocks
Code style
Better hashing of ANGIE passwords (not that it really matters as it's a temporary measure during restoration only)
Code style
Support multiple installer images per installer record
Stupid, silly typo that makes all the difference
Removing unnecessary JVERSION checks
Update backup duration after post-processing is finished
The size of the failed backup is stored when the backup record is being cleaned up automatically
Code formatting
# The backup archive size was reported incorrectly when the "Process each part immediately" option is enabled
# Step and substep not shown during database backup
Merge branch 'release/3.10.2'

Conflicts:
	engine/utils/davclient.php