Set up basic CI

Closes #468

See merge request !530

Fix groupname validation

See merge request !531

Signed-off-by: goapunk <noobie@goapunks.net>

Show text input permanently in threaded conversations

Closes #791

See merge request !526

Darken thread indicator

Closes #874

See merge request !525

Increase socket timeout for Tor sockets

See merge request !519

Store RSS flag for wrapped blog posts

Closes #941

See merge request !524

Use original timestamp for RSS posts, if available

See merge request !523

Don't use single top and clear top flags together

See merge request !522

When checking for overlay apps, ignore Play Services

Closes #938

See merge request !521

Separate RSS posts from personal blog posts

Closes #892

See merge request !520

This adds a field to the post headers and some more tests.

Attention: This factors out a DnsModule to be able to make actual
non-Tor DNS lookups for testing.

This now also handles the case where an RSS blog is deleted via the blog
deletion option and not the feed management.

This also adds a confirmation dialog to the removal process.

A fake LocalAuthor is created for this new blog and stored in the feed's metadata.

Fix MessageId calculation for deprecated MessageQueue

Closes #891

See merge request !514

Show explanation about visibility in member lists

Closes #799

See merge request !516

Prevent conversation actions from being executed twice

Closes #893

See merge request !512

Use the new launcher icon

Closes #829

See merge request !515

Terminate the process after handling a panic trigger

Closes #932

See merge request !513

This was preventing introduction messages from getting ACKed.
The introduction tests were modified to check for this.