BIGTOP-278: Use bash to execute do-component-build for deb build.
BIGTOP-278: Use bash to execute do-component-build for deb build.

do-component-build contains bash syntax; on systems where bash is not default
such as Debian/Ubuntu comparison of floating point numbers fail; this patch
ensures bash is always used.



git-svn-id: 0cbc8c076774f10ba31542f251468f5b94cfdb25@1207519 13f79535-47bb-0310-9956-ffa450edef68

rvs/bigtop,rvs/bigtop,rvs/bigtop,rvs/bigtop