using tut unit testing framework

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jollamobile.com>
test infrastructure

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jollamobile.com>
util: concat function to concat params into string

concatenates any number of parameters into string

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jollamobile.com>
options tests and corresponding fixes and functionality updates

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jollamobile.com>