Merge pull request #51 from dottedmag/rspamd-0.6

More debianization changes
Remove judy and use glib hash tables.

There is no significant advantage to use Judy arrays over glib
HashTables to store hashes in fuzzy storage. Therefore, drop support of
Judy completely. Also rename `use_judy` parameter to `strict_hash`
indicating that hashes are matched strictly (not a fuzzy match but a hash
lookup).
Merge branch 'rspamd-0.6' of github.com:vstakhov/rspamd into rspamd-0.6
Fix initialization order.

Conflicts:

	src/fuzzy_storage.c
	src/rdns
Move xxhash to contrib.

Conflicts:

	CMakeLists.txt
	src/CMakeLists.txt
Rework bloom hash library to use XXHash.

Conflicts:

	src/fuzzy_storage.c
Rework bloom hash library to use XXHash.

Conflicts:

	src/fuzzy_storage.c
Fix initialization order.

Conflicts:

	src/rdns
Add an utility to parse IP tree from a string.

Conflicts:

	src/webui.c
Prepare 0.6.9.
Fix bad merge
Update timestamp