Add a CLI command that deletes an LDAP config

With this change LDAP configurations can be managed completely from
the command line.
ability to add bower resources

* add addVendorScript & addVendorStyle
* refactoring of addScript and addStyle
* add shortcuts vendorScript and vendorStyle
replace moment.js with bower version

* fix JS unit tests
use https ... everywhere :)
Merge pull request #11916 from owncloud/introduce-bower

Introduce bower dependency managment for frontend libraries
Only rescan trash folder when checking deleted versions

This fix prevents the file scanner to rescan the WHOLE storage and reset
the etags by mistake.
enable laxbreak option in jshintrc to comply with our coding guide lines
Merge pull request #11362 from mark0n/rm_ldap_conf_cli

Add a CLI command that deletes an LDAP config
fix shortcuts - underline instead of camelCase
Merge pull request #11934 from owncloud/trash-restorefixonlyrescantrashfolder

Only rescan trash folder when checking deleted versions
Merge pull request #11938 from owncloud/jshintrc-laxbreak

enable laxbreak option in jshintrc to comply with our coding guide lines
Merge pull request #11940 from owncloud/fix-underline-convention

fix shortcuts - underline instead of camelCase
Introduce a new method for the defaultSenderName of mails

Fix #11662