update to version 1.5.2
Merge branch 'master' of https://github.com/mimmi20/Wurfl into update-to-1.5.2
reformat Code
add new tests
update from master
remove Context, add tests
remove Context
remove Context
reformat tests
fix missing class
repair some tests
repair some tests
add missing directory
fix tests
add wurfl file
fix tests
add logger
add logger, add setters
add missing class use
change rights on cache dir, remove cache dir after tests