generate a random salt during installation and store it in the config.php. use it to salt the password hashing.

Disabled by default for now.
We will check for private api calls here later once the public api is in place

new OC_Mail class to handle all mail sending. The benefit is that is way mor flexible than the standard mail command. can be configured to use a remote smtp relay for example. also port the lostpassword code

also make it possible to switch the app store and the knowledgebase off completely.

It´s automatically search in the owncloud folder and in the parent folder.
override with an option in config.php is also possible

add themeing support and support for autoselection of mobile/tablet and standalone css/jss files and templates

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Table prefix is useful where only one DB is possible (cheap hosting).
this way is possible define something like a "namespace"

default is 'oc_'