Merge pull request #1 from mempo/patch-1

linked to debian wiki
[ok] Checksums  verification should be working (with different gz files)
[fix] Restoring checksums list file in poco
[ok] added source files, option to build gpg offlie
doc - the changelog for 0.1.3
[ok] Updated version of src
[bad] Trying to get to work reproducible deb building.