Added a runtime configurable time zone.
Made a refresh happen on each button press, rather than waiting until the next second tick.
Moved the configuration to a different file.
Update README.md
Optimized it to only recalculate the code when it changes.  Every 30sec or on a button press.
ignore build dir
fix merge
 use waf .gitignore
should have ignored the build pbw file
generate configuration.h from txt file