Improve client output.
Output urls and emails more clearly.
Output emails and urls.
Add concurrency limit for the client.
Merge pull request #26 from fatalbanana/master

Allow FCrDNS-style RBL lookups
Improve hostname processing.
Fix hostname lookup for rdns rbl
Merge pull request #28 from AlexeySa/patch-2

Fix hostname lookup for rdns rbl
Update documentation.
Markdown polish.
Another polish round.
Use more permissive value for parts_differ.
Remove HFILTER_URL_ONELINE rule.

- Added functions:
 `rspamd_textpart:get_length` - get a full length of text part
 `rspamd_url:get_length` - get a full length of an URL object

- Removed `HFILTER_URL_ONELINE` as it is broken by nature
- Reworked hfilter to improve performance
Output emails properly.
Fix hfilter
Merge pull request #29 from AlexeySa/patch-3

Fix hfilter
Rework HFILTER_URL_ONELINE.
Update copyright.
New http_router interface.

This interface is designed to emulate evhttp behaviour and route
requests among a set of functors regarding the requested path. It hides
some http_connection internals allowing to work on a pretty high level
implementing an HTTP server instance.
Rework resolver library.