QUnit and initial implementation for gif searching
Basic support for gifnails through the !gif command.
Button for fetch more gifs
Useless logs.
Refactoring
4 images retrieved per fetch instead 5, break line before the "More..." button.
Better placeholder for the input.
!online gives feedback only for the caller
Transition effects to the search.
Merge pull request #42 from israelbgf/gif-search

resolves #10