* Do not include system headers in shared files (stdlib.h).
* Don't include lcd.h only once in each driver.
* Remove some unnecessary headers from driver (e.g. syslog.h)
* Include <poll.h> instead of <sys/poll.h>
* Spelling fixes.
- Fixed vbar & hbar - Allowed for displays with 2 custom characters
- Fixed cursor off - 16H - Data sheet for CU20045SCPB has error -> Cursor Off 14,16,17H
- Tested with CU40026SCPB-T20A - 40x2 - Hardware Defaults to 19200 8E1
- Added new config parameter [Parity] to set serial data parity 0(none),1(odd),2(even)
- Added config parameter OffBrightness
- added support for big numbers
- explicitely declare void arguments
- make a few string args const
* better support for shorter displays in server screen
* make target to create top level tag file
mmdolze