add getAllGroups() that uses a paged search if available
this circumvents server side search limits
(active directory has a limit of 1000 by default)
use getAllGroup() in the updateGroups background job
needed in active directory deployments with > 1000 groups
add ldap_paging_size config option
Merge branch 'ldap_paging_chunksize' into ldap_get_all_groups
merge functionality of getAllGroups into getGroups
revert updateGroups job to use getGroups() instead of getAllGroups()
getGroups() $limit was not handled correctly
getGroups(): fix overall max search limit for paged searches
fix another oversight... sigh..
Allow using pathinfo based public.php paths
adapt coding style
make getGroupsChunk() protected instead of private
change default ldap paging size to 500
adapt description of paging size configuration
Allow reusing FileInfo for getStorageInfo
Remove dependency on container, removing service locator antipattern
Modified app to dynamically register backends instead of hard-coding them
Moved dependency check to the individual backends instead of the config

Conflicts:
	apps/files_external/appinfo/app.php
	apps/files_external/lib/config.php
Added cURL dependency check to Google Drive and WebDAV backend
Added check for backend's checkDependencies method to OC_Mount_Config::getBackends() when backend is configured to have some instead of blindly calling it and crashing

Conflicts:
	apps/files_external/lib/config.php
	apps/files_external/lib/google.php
Changed dependency check messages from warnings to notes
Added check for duplicate dependency check messages to display only the first
Added cURL dependency for Amazon S3, Dropbox and SWIFT

Conflicts:
	apps/files_external/lib/amazons3.php
	apps/files_external/lib/swift.php