Fix deleting non deletable files by selecting them

Check imagecreate*() return before using and use logger in \OC_Image

Implement a logger to log to error_log

Allow read-only configuration

This checks that imagecreatetruecolor actually creates an image, rather than returning FALSE.
Without this check, subsequent loop might create billions of ERROR-level log messages.
Signed-off-by: Byron Marohn <combustible@live.com>

Issue/12460 port local changes2mapped

Depcrate namespaced functions, since they can not be autoloaded

You can only change the oritentation of a JPEG

Disable MSSQL and OCI for new CE installations

activitymanager: concatenate queries with 'or'

Since automatic schema migrations are not yet possible let's disable this for now.

add activity priorities to core so that other apps can reuse it

Issue/6101 Autoload preview providers

Skip lostcontroller sending email test on windows

Add notes that SQLite is CE only

Add functions to modify cookies to response class

Issue/6101 Make all interfaces/classes autoloadable

Limit blacklist to php files

During performance optimization I have discovered that the installer scans all files for the blacklisted words. This greatly impacts speed on lower end devices such as the raspberry pie. This commit limits it to PHP files which seems to achieve the desired effect. 

I have used the --include option to achieve this, see http://stackoverflow.com/questions/1987926/how-do-i-grep-recursively

This contribution is MIT licensed

So the class files only have class code and don't execute code

Add Jail and PermissionsMask storage wrappers