The new --(no-)increment flag has been added to add, update and rebuild
subcommands. In case if it is true and package version is the same as in
repository, it will automatically bump pkgrel appending (increasing)
minor part of it (e.g. 1.0.0-1 -> 1.0.0-1.1).
Inn order to implement this, the shadow (e.g. it will not store it in
database) patch for pkgrel will be created
This commit also extends configuration of the multilib option, adding
the ability to exlcude multilib repository from repositories list
Note, that in order to support repository list and mirror correctly,
alpm configuration section is now architectture specific
Some commands have been moved to another group and thus having another
default name (old subcommands are still available...for now):
* daemon -> repo-daemon
* key-import -> service-key-import
* repo-clean -> service-clean
* repo-config -> service-config
* repo-config-validate -> service-config-validate
* repo-setup -> service-setup
* repo-shell -> service-shell
* version -> help-version
