updated to oniguruma to 5.9.5
updated NEWS
Fixed workings of isset() and empty() on objects that implement has_dimension() and read_dimension()
Updated test case expected output to add offsetGet() calls
Fixed memory leak
Removed commented code
Post rebase fixes
Removed check_empty argument
Fixed crashes
Fixed two more test cases
SplFileInfo can't be used on directories, so using ->offsetExists() instead for the test.