* 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.
* Add more documentation about the inner working of this driver.
* Consolidate constant definitions.
* Stop the 'include-mania': Only include necessary header files within the .c
files.
* Use lpt-port.h to define LPT port register values.
* Modify some comments to conform the the style guide.
- 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