Update README.md
[WO-555] Remove cleartext prefix to encrypted messages
Merge pull request #111 from whiteout-io/dev/WO-555

[WO-555] Remove cleartext prefix to encrypted messages
[WO-555] use pgpmailer v0.4.0
[WO-554] Fix tests
[WO-526] Fix key activation race condition

Add imported flag to public key to avoid unnecessary check
for deletion/update of personal public key, same behavior
as imported public keys
[WO-491] Allow STARTTLS, add Outlook.com

* Change UI to choose encryption type TLS/STARTTLS/None
* Change adapt login controller to STARTTLS changes
* Add Outlook.com to providers
[WO-491] Add GMX.net support
Add minified css to git to allow web server deployment wihtout sass toolchain
Fix install to work on aws
Add full dist directory for testing
Relax CSP to allow iframe assets to load
Socket.io proxy works