Ensure that $db_show_debug is always set

Signed-off-by: emanuele <emanuele45@gmail.com>
$db_show_debug is now always set, let's just test it

Signed-off-by: emanuele <emanuele45@gmail.com>
Isolage debug into its own (static... yeah I know static classes are just as bad as globals, but I'm not a coder :P) class

Signed-off-by: emanuele <emanuele45@gmail.com>
Show the queries belongs to the debug class I think

Signed-off-by: emanuele <emanuele45@gmail.com>
Forgot a bit of header

Signed-off-by: emanuele <emanuele45@gmail.com>
Query warnings are not used since **forever**

Signed-off-by: emanuele <emanuele45@gmail.com>
Doc comments so that Scrutinizer and Spuds are happy! :P

Signed-off-by: emanuele <emanuele45@gmail.com>
Hopefully Scrutinizer will be more happy

Signed-off-by: emanuele <emanuele45@gmail.com>
Singleton instead of static for debug class

Signed-off-by: emanuele <emanuele45@gmail.com>
Docs tweaks

Signed-off-by: emanuele <emanuele45@gmail.com>
Some adjustments to the debug class usage

Signed-off-by: emanuele <emanuele45@gmail.com>
Missing global

Signed-off-by: emanuele <emanuele45@gmail.com>
Unread class was not following naming pattern

Signed-off-by: emanuele <emanuele45@gmail.com>
Missing bracket

Signed-off-by: emanuele <emanuele45@gmail.com>
Moved to class properties

Signed-off-by: emanuele <emanuele45@gmail.com>
Missing global

Signed-off-by: emanuele <emanuele45@gmail.com>
 Variables out of scope

Signed-off-by: emanuele <emanuele45@gmail.com>
Again out of scope

Signed-off-by: emanuele <emanuele45@gmail.com>
Undefined variable

Signed-off-by: emanuele <emanuele45@gmail.com>
Merge pull request #1630 from emanuele45/debug

Debug