Consolidate plugin inotify into core. Print message during startup.

Delete metadata/inotify.xml.in, plugins/inotify.c
Remove inotify from metadata/Makefile.am, plugins/Makefile.am
Remove inotify from metadata/core.xml.in
Remove inotify from po/POTFILES.in

configure.ac: inotify is not a plugin anymore

include/fusilli-core.h:
	Remove fileWatchAdded, fileWatchRemoved from CompCore

src/core.c:
	Add the functionality formerly provided by plugins/inotify.c

src/main.c:
	Print version and inotify support status during startup.