Merge branch 'master' of https://github.com/friesoft/contentconnector

merged in latest changes from friesoft fork
Merge branch 'master' of git://github.com/friesoft/contentconnector into friesoft
Fixed tests not working if the checkout path contains spaces
Sonar: Performance - Method concatenates strings using + in a loop
added gitignore
gitignore for null folder
sonar warnings (equals comparisons string to stringbuilder),
nullpointer, variable naming for statics
Merge branch 'master' of git://github.com/friesoft/contentconnector into friesoft
fixed newline problem on windows systems
remoted null folder
Merge branch 'master' of github.com:gtxcontentconnector/contentconnector into friesoft