1. Implemented #221 Edit message [Pump.io]
   Messages with and without attachments can be edited. A User can change both text and an attached image. What is not supported (and will fail on an attempt to send an update): adding an attachment to a message that didn't have one. Or removing an attachment. This is because messages with and without attachments are two different types of objects in Pump.io.
   "Edit" context menu item appears, when a Sender is my account and it is successfully verified (i.e. the account can actually post the update).
2. Added "Get Message Information" context menu item #418.
   We already have "Get User Information" for a User, which allows to update the User's information, including information on Friends and Followers . Similarly, the "Get Message Information" action allows to update information on replies, likes and reblogs / retweets / shares. In particular, for Pump.io this feature allows, in addition, retrieve Replies to this message in order to see them in a Conversation view, see #276.
3. Implemented #375 [pump.io] Create proper HTML links.
   Actual text transformation is done in literary 3 lines of code using Android system libraries. This gives an advantage of using better algorithm at each subsequent version of Android libraries. Emails are not HTMLified.
4. Size of text in Account and Timeline selectors enlarged. Now it's the same as a body text of messages (and hence it can be changed in Settings).