configmanager and proxy changes

[Ueli Rutishauser <urutishauser@bigfoot.com>]

Hello,

some news about the configuration manager and proxy support.

there are some problems with the configmanager and leading/trailing space
in the config files, so i fixed it.

changes:
configmanager/ConfigManager.cc - use alltrim to allow leading/trailing spaces in
a configuration file

utils/str.c, str.h  - new function char *alltrim (char *) and 
int strlen_wspace(char *)

utils/str.h  - new function char *alltrim (cgar *)

new function: alltrim -> remove all spaces in a string

proxy-support:

a exapmle 2B.conf file for enable proxy support is on 
http://www.geocities.com/SiliconValley/Peaks/3560/mnemonic_conf.html

i'm going on now with work on proxy redirect support.

cu,
ueli (urutishauser@bigfoot.com)