Bump debian/compat to '7'.
Bump debian/compat to '7'.

astraw/stdeb,LeMeteore/stdeb,pombredanne/stdeb,benthomasson/stdeb,sathieu/stdeb,sathieu/stdeb,LeMeteore/stdeb,astraw/stdeb,pombredanne/stdeb,pombredanne/stdeb,benthomasson/stdeb,benthomasson/stdeb,sathieu/stdeb,astraw/stdeb,LeMeteore/stdeb