Updated simulation file with latest megas2 features
Bugfix: DHCP lease time was incorrectly computed
Bugfix: dates were rendered incorrectly
Bugfix: DS1307 read 12-hour mode incorrectly
Altered simulation file to work with pre-existing virtual network
Replaced mkrawfsimg with Python version
sudo no longer necessary for running simulation
Moved favicons to WWW root
Bugfix: Plant records were not saved
Bugfix: TCP stack answered with >0 window size for pending connections
Reduced code size by providing simpler itoa() function
Store measurements in range 0-100 instead of 0-200
Slight refactoring for TCP implementation
Minor refactoring in PHP module.

- We use the more correct term "chunk" instead of "token" when referring
  to the way the output is partitioned
- The three states for rendering attributes have been collapsed to one
Bugfix: CSV columns were not formatted properly
PHP: Get render date at the very beginning of the render process
Moved some utility functions out of php_impl.c
Made attribute rendering functions more uniform.

This is in preparation for a major rewrite of the PHP module.
Refactored PHP module:

- Switched to a microcode system
- Added a compiler for uPHP
Added uPHP microcode reference