Trying to use dubsar SecureSSLSocketFactory.
SSL ciphers are more secure.

I introduced https://github.com/parmegv/dubsar_android/tree/master/SecureClient as a dependency.

I picked up the cipher list from http://op-co.de/blog/posts/android_ssl_downgrade/ (which in turn took it from https://briansmith.org/browser-ciphersuites-01.html).
No sharedprefs methods in ConfigHelper.

This means we obtain the SharedPreferences object each time we want to
use it. This yields to longer code lines while reading and writing to
them.
Substituted AboutFragment with AboutActivity.
changelog release flavor text added
Remove obviated settings entry from Dashboard menu
Merge branch 'feature/change-ssl-cipher' into develop
Merge branch 'feature/remove-shared-preferences-methods-from-ConfigHelper' into develop

Conflicts:
	src/se/leap/bitmaskclient/Dashboard.java
Merge branch 'bug/about-fragment-legacy-references' into develop
Select VPN gateway by least timezone difference
Better host matching when updating gateways list
Explicit startService() for updating EIP definitions
Merge branch 'feature/timezone-vpn-gateway-selection' into develop
Transifex configuration
Remove stowaway values-nl folder that was commited to res/values/ folder
Merge branch 'bug/remove-settings-menu' into develop
Merge branch 'feature/transifex' into develop