[INTERNAL] grunt: force unix lf, include less files, fix (c) replacement

- forcing linefeed used by grunt (e.g. when processing templates) to
unix (see https://github.com/gruntjs/grunt/issues/1123) 

- removed exclusion of css/less files in copy task (they should be part
of the build result)

- fixed placeholder replacement: now runs for all relevant files, fixed
formatting of copyright

Change-Id: I6bf7daf3bee4f5cf194c6bda11d402ff76f8afda
Merge "[INTERNAL] grunt: force unix lf, include less files, fix (c) replacement"