Measurement of the ratio of the production cross sections times branching fractions of B+-/c --> J/[psi][pi]+- and B+- --> J/[psi]K+- and B(B+-/c --> J/[psi][pi]+-[pi]+-[pi]-+)/B(B+-/c --> J/[psi][pi]+-) in pp collisions at root{s} = 7 TeV