Changed name of IgnoreFileP() to IgnoreFilePredicate() for clarity.

Fixed some inadvertent tab-to-spaces whitespace issues.
Merge branch 'master' of https://github.com/cvmfs/cvmfs into cvmfs-master

Conflicts:
	cvmfs/sync_mediator.cc
	cvmfs/sync_mediator.h
Merge branch 'feature/overlayfs' into merge-fiff

Conflicts:
	cvmfs/sync_mediator.cc
	cvmfs/sync_mediator.h