[GSS](7.0.z) Log rotations should be more resilient to failed rotations

After update from 7.0.5 to 7.0.8 under windows seeing:

2017-05-29 11:01:48 Commons Daemon procrun stderr initialized
LogManager error of type OPEN_FAILURE: Unable to rotate log file
The process cannot access the file because it is being used by another process.
at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:86)
at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)
at sun.nio.fs.WindowsFileCopy.move(WindowsFileCopy.java:387)
at sun.nio.fs.WindowsFileSystemProvider.move(WindowsFileSystemProvider.java:287)
at java.nio.file.Files.move(Files.java:1395)

This issue has been addressed already by LOGMGR-154