Enhancements:
#44 Add setPassword method on ZipFile
#50 Option to skip overriding existing files when adding files to zip
ZipInputStream.getNextEntry() should return next entry even if current entry is not completely read
Bug fixes:
#58 Stream not properly closed when exception occurs with ZipFile.getInputStream()
#57 Fix ZipFile.getFileHeaders() javadoc
#55 ZipSlip fix with File.getCanonicalPath() instead of just File.getPath()
Empty output file is created when extracting with wrong password for Standard zip encryption