updatedb: use tirex-batch for expire.list

tirex-batch can handle tile rebuild by expire.list
which is genereted by osm2pgsql.
we add osm-expconv tool to convert expire.list
to tirex-batch form.

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
remove submodule for expire.list

now updatedb util can handle expire.list with
pure tirex tools.
lib: mv lua-ngix-osm to top directory

now luabitop patch is located in doc/
remove install scripts
submodule: clean up
doc: update

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
lua-nginx-osm: submodule reinit
doc: LuaBitOp installtion instruction

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
Changelog: update

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
updatedb: working tirex-batch
Merge pull request #28 from osmfj/use_tirex_batch

Use tirex batch: accepted