add Test for track containing no measurements after obfuscation
Merge branch 'bugfix-0.7.1' into develop
remove user/token headers after logout. fixes #158
merge fix for #158
include additional GPS data related to accuracy. closes #159
disable PIDSupported parsing. short term fix for #192
merge short term fix for #192
Merge pull request #194 from matthesrieke/develop

re-align develop branch