Version 2.0.0 with curl instead of wget

Changes since v1.2.2

• Using curl instead of wget
• Fix #36 (unable to read cookie file)
• Fix #34 (413 Request Entity Too Large)

v1.2.2: New version with minor updates

Changes since v1.2.1

• Loop detection: #24.
• Add test cases.
• Update documentation (Cookie issue.)
• Minor code improvements.

v1.2.1 with minor bug fixes and improvements

Changes since v1.2.0:

• Fix bugs: #6 (compatibility issue),
  #13 (so large group),
  #16 (email exporting and third-party license issue)
• Fix script shebang.
• Google organization support.
• Ensure group name is in lowercase.
• Minor scripting improvements.

Version 1.2.0 with private group support

Version 1.2.0 supports private group

Changes since v1.0.1:

• Drop the use of lynx program. wget handles all download now.
• Accept _WGET_OPTIONS environment to control wget commands.
• Can work with private groups thanks to _WGET_OPTIONS environment.
• Rename script (craw.sh becomes crawler.sh.)
• Output important variables to the output script.
• Update documentation (README.md.)