[fix: vimplugin mappings]
[fix: vimplugin mappings]

	issue: 'break delete enable disable' did not work on files not in
		   the current working directory
	reason: the breakpoint key used to store the breakpoints in vimgdb
			consideres the complete path
	fix: use complete buffer name instead of only the file name

jnow-87/vimgdb,jnow-87/vimgdb,jnow-87/vimgdb