Issue #1551534 by Lendude, vsujeetkumar, neclimdul, b_sharpe, devert, bcn,...

Issue #1551534 by Lendude, vsujeetkumar, neclimdul, b_sharpe, devert, bcn, henkholtrop, heykarthikwithu, richmac, seanB, casey, mishac, alansaviolobo, idebr, lauriii, dawehner, alexpott, BramDriesen, randell, ilya.no, muka, DamienMcKenna, Dom., dnewkerk, tim-diels, natted, slayne40, Spry_Julia, Jibus, cpliakas, pbouchereau, S3b0uN3t, HongPong, rfbrandsma, grantkruger, sanderwind, borisson_, nerdacus, mglaman, mvwensen, jmickela, droplet: Submit buttons themed as <button> element fail to trigger ajax in Views exposed forms