check string for equality

Conflicts:
	buildtimetrend/travis.py
set variables first before testing
fix JOB_NUMBER variable name
fix typo
create seperate get_logger method, issue #55
get_logger() returns buildtimetrend logger object, close #55
add extra newline
fix indenting
use settings for get_read_key
add handler to logger, issue #55
also set loglevel on logger
fix string
improve testclass name
add method that reads build properties from settings
use load_properties_from_settings
split long strong correctly over multiple lines
add operating mode to settings
improve variable name
remove whitespace [skip ci]
add mode_{keen|native} to config sample file