Fix invitation-based certificate exchange: auto-connect after invite.

Previously, invitations were working, but all that would happen was
certificates were exchanged.  No TLS connection was established.  This has
been fixed by adding some parameters to the 'storeExternalCert' message.

Jira issue: WP-852
Downgrade PZH WS Package.json, to fix issue in Express/Send deps.

The 'express' and 'send' modules are broken on npm, this forces
them to use a slightly older, working version.

Jira issue: WP-1097
Merge pull request #16 from jplyle/downgrade-express

Downgrade PZH WS Package.json, to fix issue in Express/Send deps.
Fix npm respositories warning

Jira-issue: WP-1100
Merge pull request #17 from aldafu/patch-1

Fix npm respositories warning
Merge pull request #15 from jplyle/add-auto-connect-option

Fix invitation-based certificate exchange: auto-connect after invite.
Use correct tokens for Twitter invitations

The twitter invitations were using hard-coded credentials, rather than
the access token returned for this user as part of the OAuth process.

Jira issue: WP-1101
Merge pull request #18 from jplyle/fix-twitter-auth-token

Use correct tokens for Twitter invitations
Bump version number
Merge pull request #19 from jplyle/bump-version

Bump version number