* Renamed 'defaults::languages' to 'defaults::language'.
* Created Storage->change_mode(), Storage->change_owner(), Storage->make_directory() and Storage->write_file() that does what their names imply, using the shell commands instead of the built-in commands (may switch to them later). The ->make_directory() method will create any needed parent directories.
* Moved System->read_file() to the Storage module as it made more sense there. For now, System is empty.
* Created Words->language to set or check the active output language.
* Fixed Template->get() to use Words->language.
* Updated Words->string() to take the new 'string' parameter which, when set, is used instead of the 'key' parameter and is treated as a pre-retrieved string, so replacement keys are directly injected.
* Updated Template->get() to take the 'variables' parameter and then uses Words->string({string => ...}) to process the replacement keys.
* Updated tools/scancore-update-states to write out the network interface states to the status.xml file.
Signed-off-by: Digimer <digimer@alteeve.ca>