clarify licensing - close #96
fix show command
i should be a shortcut for instance
'v inspect' is not the same as 'v ins pect'
Bump to version 1.6.2
update changelog notes
 thank new contributors
Move RDebugTestSlow test to rdebug_option_parser_test and delete

Only test for annotate command line flag
Convert slow rdebug tests to RdebugOptionParser unit tests