This adds copyright/license notification blocks CMake's non-find
modules. Most of the modules had no notices at all. Some had notices
referring to the BSD license already. This commit normalizes existing
notices and adds missing notices.
STYLE: use SET_SOURCE_FILES_PROPERTIES() on multiple files at once instead
of interating over each one of them
STYLE: no need to add target.ld to the clean-files, this is done now automatically by add_custom_command()
ENH: now also MS nmake can be used to build ecos apps
Alex