Merge from develop

Mark Version 0.9.7 as released

Fix cpack package generation

Merge from develop

Mark version 0.9.5 as released

Mark 0.9.4 as released

Mention Devuan in ChangeLog

Fix test case on 32bit platform (caused by double inaccuracy)

Since 0.9.3-alpha set the config value cryfs.blocksizeBytes wrongly t…

…o 32768 (but didn't use the value), we have to add a workaround.

Add building CryFS from github tarball to ChangeLog