lpc21isp version 1.97:

Martin Maurer merged bugfix by imyller:
- Support for bad UARTs: added -writedelay command-line switch
Martin Maurer
Add some new chip ids for LPC11xx
Updated .gitignore file (Now with ignored *.layout)
Removed *.layout from lpc21isp project
Removed *.depend from lpc21isp project