All the code from the activity and the fragments has been successfully
ported to the SwapWorkflowActivity + Views. Thus, the code is no longer
useful, as it was only kept over the previous WIP commits so that it
can be referred to to help re-implement fragments with views.
Added a SwapWorkflowActivity to re-implement the SwapActivity.
Once all the fragments have been refactored into views, then the
SwapActivity will be removed.
* Cleaned up text alignment styles for API < 17.
API v17 has a textAlignment style, wherease previous verisons rely on
the "gravity" property. This change includes gravity="center" where there
was previously only textAlignment="center".
* Fragments get added properly on 2.3 device.
For some reason, when adding the fragment to android.R.id.content, it
wouldn't work on my 2.3 device. This change includes a (almost) empty
activity layout with a single FrameLayout. The fragments are added to
this rather than "content", and it works better. It is not perfect - it
still adds the fargments behind the action bar, and so the action bar
appears blue. But at least they are there :)
* Added translatable strings where constants were used before.
Not related to v2.3 support, but stil important for a stable release,
that is fully translated.
