Add bower to devDependencies
Add bower to devDependencies

This relates to the change here: 7bbccd5c4fc12c67f1be0e043c0ba36ba26497fd
CI on Jenkins needs a local version of bower for the npm postinstall script

grahamscott/daterangepicker,ingdir/daterangepicker,BrandwatchLtd/daterangepicker,grahamscott/daterangepicker,ingdir/daterangepicker,BrandwatchLtd/daterangepicker,BrandwatchLtd/daterangepicker,ingdir/daterangepicker,grahamscott/daterangepicker