Update BitBake recipe & brew formula

Fix merge issue for man path

Update the brew formula

This update is for OSX users to be able to download v0.6 through the
brew formula.
Using v0.6 or v0.6.1 for non-OSX users won't change anything.

Update version to 0.6

Prepare for v0.5.2

Update the brew formula

This update is for OSX users to be able to download v0.5.0 through the
brew formula.
Using v0.5.0 or v0.5.1 for users not on OSX won't change anything.

Update installation instructions

Update the brew formula

This update is for OSX users to be able to download v0.4.0 through the
brew formula.
Using v0.4.0 or v0.4.1 for users not on OSX won't change anything.

Prepare for v0.4, add changelog

This is past time to have a 0.4 version of dislocker.

Notable changes in CHANGELOG.txt