set version/projectname properly

lbmk used to set version/versiondate directly in
err.sh, but now it's handled there by a function,
which is called by the main script.

script/update/release hadn't yet been adapted. the
only change necessary is to call check_project()

script/update/trees also makes use of it

script/build/roms is using "projectname"

Signed-off-by: Leah Rowe <leah@libreboot.org>

script/update/release

@@ -21,6 +21,8 @@ main()
 		esac
 	done
 
+	check_project
+
 	vdir="${vdir}/${version}"
 	relname="${projectname}-${version}"
 	src_dirname="${relname}_src"