Fixing typo that causes extra downloads for dashboards.

There are sample files which get downloaded when building
UV-CDAT but these aren't needed by the dashboard builds but
due to a typo they are being downloaded anyways. Fixing it to
get rid of this wasteful download.
Merge remote-tracking branch 'devel/129_fix_cmake_typos' into devel-master

Conflicts:
	CMake/dashboard/meryem.cmake