TweetInfoPage: try to show replies to the shown tweet

... there's unfortunately no API point for this, so we just use
1.1/search/tweets.json.
The current implementation stinks, the replies should ideally only be
shown when the user scrolls up, and not by default as it is now.
TweetInfoPage: Show 5 replies max.

... Also, add a bunch of checks if in_reply_to_status_id really exists
or if it is null.
Merge branch 'master' into tweet-replies
Merge branch 'master' into tweet-replies

Conflicts:
	ui/tweet-info-page.ui
	ui/tweet-list-entry.ui
TweetInfoPage: Mark the location label no-show-all

*Someone* forgot that.
TweetInfoPage: Try to visually center the tweet when adding relies
Add new profile prototype
ProfilePage: Show location and website
style.css: Remove unneeded style classes
Merge branch 'master' into new-profiles
Merge branch 'new-profiles' of https://github.com/baedert/corebird into new-profiles
ProfilePage: Don't use unexisting tweet_list
ProfilePage: Use tweet_list again
ProfilePage: Expand the banner when scrolling up
ProfilePage: Add dm_menu again

... Also, fix the AspectImage's scale property,
add a placeholder for the tweet list, etc.
ProfilePage: Delete old placeholder
Rename profile-page2.ui to profile-page.ui
Merge branch 'master' into new-profiles
TweetInfoPage: Mark placeholder string as untranslatable
ProfilePage: Show 'tweet to @<screen_name>' item