Republican gubernatorial candidate Norm Coleman today (THURS) promised to put millions of dollars more into fighting gangs state-wide. Yesterday, DFLer Skip Humphrey made a similar pledge -- again, singling out gangs as a target for more law enforcement. Hennepin County Attorney Mike Freeman responded by saying HE's the only candidate for governor who has real experience combatting crime. Minnesota Public Radio's Martin Kaste reports on the candidates' recent focus on law and order: The race for governor has experienced a sudden rash of gang-related campaign promises. Skip Humphrey started the spree yesterday with by standing near the site of a recent fatal shooting on St Paul's Western Avenue: ((HUMPRHEY: Now that was just another case of the tragic mixture of GUNS and GANGS and DRUGS, and it leaves our citiz