Sysinfo2: Linux part is (almost) code complete

The Linux part is almost code complete. Feel free to check out Revision 79 from Subversion repository for testing. Please report any problems using the forum.

The code include the following modules:

* cpu
* display enviroment
* enviroment variables
* memory
* network (dhcp is missing)
* operating system
* software
* storage

Note: This is not an official release. No official support will be given and they have only been tested so far as they compile cleanly.