Feature Request: Focus space shortcut

[itelo]

since we already have:

mod2 + 1	Throw focused window to space 1
mod2 + 2	Throw focused window to space 2
...
mod2 + 0	Throw focused window to space 10

would be nice with we have to

mod1 + 1	Focus space 1
mod1 + 2	Focus space 2
....
mod1 + 0	Focus space 10