Fix problems found by static analyzing.

Add descriptions for some rspamd API functions (no functional changes).

--HG--
rename : linux/rspamd => linux/rspamd_debian.in

--HG--
rename : rspamd.xml.sample => conf/rspamd-basic.xml.in

Uncompatible changes:
- Statistics is uncompatible in utf8 mode

Major changes:
- Improved utf8 mode
- Convert all characters to lowercase in statistics
- Skip URL's in statistics
- Improve speed of bayes classifier by using integer arithmetics
- Fixed statfiles synchronization that was broken for a long time
- Synchronization is now configurable

Minor changes:
- Bugfixes
- Removed some of legacy code
- Types polishing

 - add librspamdserver
 - link this library to all daemons and utils of rspamd
 - use subdirectories more often
* Rework global variables logic - move them to the main process
* Fix logging to handle utf-8 correctly
* Add statshow utility and make it working
* Move printf functions to separate source file

* Add initial version of statshow utility for statfiles debugging
* Add debugging for statistics
* Remove unused utilities

* Improve and fix multimap module
* Add rspamd_config object to stage of early configure of rspamd

* Add cdb:// map to multimap plugin

Install surbl-whitelist. [1]

[1] Reported by Victor Ustugov

Fix bug with extracting urls from tags without quotes.

* Emails now are separated from urls and urls checks
* Add ability to check text attachements if option is presented in a configuration

Version is 0.3.6 now

* REMOVE perl client (at last)
Fixed some stupid moments in a controller's protocol

Change version to 0.3.5

 - now symbols inside metrics definition must be inside rules as well
 - symbols may be virtual (e.g. when module can insert several symbols inside callback)
 - symbols may be pure callbacks (when symbol's name is unknown and depends on conditions)
* Module 'emails' is removed as it is not used in the current rspamd
MANY fixes to sample config files

* Add ability to manage per-module, per-worker and per-classifier options in XML parser

Split smtp code to 'utils', 'protocol' and 'worker' functions.
* Add support of actions for smtp worker.

Strictly follow c99 standart.
Turn on pedantic c99 checks.

* Fix ip address parsing in redirector config
* Fix logic of checking url in redirector if its domain is in exceptions list
* Add dependencies in perl module (suggested by AZ)
* Add BUILD_PORT define for skipping installation of FreeBSD rc scrips (suggested by AZ)
* Change version of 0.3.3

* Small fixes to rspamd perl client
* Write fuzzy hashes info to log