v2.1.2

Fixed:

#25 Add feature to exclude hidden folder when adding folders to zip
#26 Remove Lombok library
#27 ZipException while extracting, despite unzip, 7z and Windows Explorer extracts well
#28 workCompleted gets bigger than totalWork in the ProgressMonitor
#32 ProgressMonitor resets itself when a task successfully or unsuccessfully finishes
#33 ArrayIndexOutofBoundsException when read directory from zipInputStream
#35 readLine from zip file,throw NPE when file contains blank lines
Rename utils package to testutils in test