* lib/functions.sh
  Added coloring to messages generated by the build process.
  Fix: loop functions (fetch_all_patches, verify_all_patches) were not
  incrementing the counter; was stuck in infinite loop.
* bin/cross-compile-stage.sh
  Fix: current path is not being reset to the starting point before
  sourcing in next package script; was unable to locate the scripts.
* packages/pkg-file.sh, packages/pkg-linux-headers.sh
  Fix: patch array vars not declared.