[Tracker] suggestions: some cleanups

[Tshepang Lekhonkhobe <tshepang gmail com>]

Hi,

This mail is regarding control files (.firsttimeindex,
crawl-interval.txt, .metaisrunning) for lack of a better name.

Can we have some consistency regarding where these files are located
(they are all over the place) as well as the naming policy (some are
hidden and others are not).

suggestions:
* put files related to user-input in .local/share/tracker (crawl-interval.txt)
* put other files in .cache/tracker (.firsttimeindex, .metaisrunning)

sidenote:
* I got a patch where I implement TST history persistence
(https://bugzilla.gnome.org/show_bug.cgi?id=620354) and put the
history file in .local/share/tracker, so I suppose that it's in the
right place

so:
* should we have some of these files hidden?
* on tracker-control -r, .firsttimeindex does the correct thing by not
claiming to be removed even when it din't exist, so I think the rest
of the files, including DB files, should be that honest
* content.db in unused, so shouldn't be generated

-- 
blog: http://tshepang.tumblr.com