Corrected 'build_depend' into 'buildtool_depend' in package.xml files.
Added dependency on cvs.
Remove ros package slime as slime can also be a system dependency.
Changed ros dependency on rosemacs-el into system dependency on emacs.
Removed no longer necessary loading of ros-package slime and its content.
Removed old manifest-file.
Re-changed dependency on emacs into dependency on rosemacs-el.
Merge pull request #1 from airballking/master

Two tiny tidy ups for package.xml files...