added test for checking definitions before a "release"

added more tests, make all tests static/private

enable all test classes...

adding tests + some minor cleanup and improvements

added/improved/fixed some tests, some related small fixes and ...

improvements

added menu item/display position showing oxygen sensor heater current

adjusted/fixed tests

fixed compiler errors in tests

fixes and improvements for oxygen sensor heating control

two more test for module rules

do not return from main() after test completed, cancel alerts fired ...

during tests

added tests for rules

adjusted test

back to programmer port /dev/ttyACM3...

experimental implementation of rules to notify about certain conditions ...

during burndown

refactored/renamed module "usart", use own implementation, added test, ...

updated comments, some cleanup

fixed some comments

improved comments, made parameter constant

added ability to set beep tone and a command to test/play with beeps

added tests for module "alert"

updated comments

adjusted test some more

new way of running tests

test new way of running tests

split tests into modules

- use size_t ...

- added tests
- some small improvements

- made function parameters readonly ...

- types with capital first letter
- updated comments and documentation

- one test was not included

- fixed obscure test failure

- use program space for unit test instances instead of data space ...

- "private" variables static
- removed updateDisplay()
- renamed some functions