Separate the HTTPS statement under one heading

also update examples to use HTTPS
Add audit for versioned casks with no checksum

* Check if version is not latest and has a sha256 :no_check for checksum
Fix SwitchResX with a version and sha256 to pass test
GPSBabel download URL updated
Postbox updated to latest version
StrongVPN Client updated to 1.0.4
StrongVPN Client appcast URL added
Tactor cask made more generic
Tagoman cask made more generic
Merge pull request #4752 from radeksimko/postbox

Postbox updated to latest version
updated instacast (1.2.4 (2250))
Merge pull request #4753 from radeksimko/strongvpn

Update StrongVPN Client to 1.0.4 + add appcast
Merge pull request #4756 from vitorgalvao/update-instacast

updated instacast (1.2.4 (2250))
regularize whitespace
Merge pull request #4755 from radeksimko/tagoman

Make Tagoman cask more generic
Merge pull request #4754 from radeksimko/tactor

Make Tactor cask more generic
Merge pull request #4700 from radeksimko/gpsbabel

Replace GPSBabel download URL (softpedia) with an official one
Note about Dropbox URLs added
Merge pull request #4745 from radeksimko/dropbox-docs

Add note about Dropbox URLs
allow "Current" to fail without affecting badge