Refactored few more tests to support autodetection: basic, call_before_main, dev_null, rtc, stdio

Host test plugins: Bug-fix: Wrong variable was checked against None while readling line from serial port

Cleaned pyFlakes issues with unused imports

Host test refactoring: cleaned a bit functionality of host tests. Forced test() function in DefaultTest to be method returning test result

Host test refactoring ...

Host test refactoring: replaced magic values of test results returned by host test

Prints with stdout.flush() replaced with notify function

Host test refactoring: created separate enum like class for test result strings

Added stdio receive time in host test prints

Modified host tests to use serial.realine() function to avoid extra timeouts during tests (test will work faster and will be more reliable)

Modified host tests to use serial.realine() function to avoid extra timeouts during tests (test will work faster and will be more reliable)

Modified host tests to use serial.realine() function to avoid extra timeouts during tests (test will work faster and will be more reliable)

Fixed missing STDOUT in Echo test ...

Fixed missing opening and closing brackets in {{start}}

Added dynamic test printing

Modified STDIO and ECHO so they use rpeamble to initialize communication

Added 'real-time' test result printing when tests are executed (view test execution progress using option -V)

Test bugfix: bugfixed RTOS (mutex, semaphore) - not thread safe stdio causes test result prints to be interrupted by threads' printing ...

test bugfix: added support for targetID print from device for 'hello world' and 'stdio' testcases

Host test: wrapped mbed.serial.timeout into separate function to avoid traceback and send proper IO_SERIAL error from host test(s)

Added serial port wrappers for read/write instead of raw serial port access to access MUT serial port. This will allow to catch more issues with communication with MUT during tests. This will also 'hide' tracebacks from test suite execution.

pyFlakes issues fixed. Simple refactoring

TC and UDP client updates. Added automation information to test suite. Added new peripherial: 'ethernet'

Added automation tests' implementation for TCP_Server, UDP_Server and STDIO