README.md: Reference module development guide (fixes #10)
Replace dev_string to dev_list
Merge pull request #52 from techtonik/patch-1

README.md: Reference module development guide (fixes #10)
Module reorg
Fix rename error.
Reorganization.
Categorize some modules.
Merge pull request #56 from filipenf/fix-lvg

LVG module fix when using multiple devices (string to list)
Move from md5 to sha1 to work on fips-140 enabled systems