fixed bug #5894: File locking and unlocking not clean
Merge pull request #189 from Seidemann-Web/b-dev-ce

fixed bug #5894: File locking and unlocking not clean
add comment for type hinting (cherry picked from commit d492d14)
add comment for type hinting (cherry picked from commit d492d14)
add comment for type hinting
Merge remote-tracking branch 'oxid/b-dev-ce' into composer