Dropkick Murphys have toured a lot. Sorry, that’s vague for a decidedly Boston band that’s found fan bases in LA and Ireland, Australia and Eastern Europe. To be more specific: Dropkick Murphys have toured Lansdowne street a lot. The now global band started at long-gone Kenmore Square club the Rat just a stone’s throw from Lansdowne. Then the Dropkicks dominated venues on the street: first Avalon, then the new House of Blues, and even Fenway Par…