0.001
  - Inital release

0.002
  - Added command line interface xmlsig
  - added CONTRIBUTING.md
0.003
  - Fixed typo in make file required pkg list
0.004
  - Fixed bug that could cause a crash when an incomplete or invalid cacert is passed in.
0.005
  - Removed Data::Dumper import
  - Changed min version of Carp to 1.38