[bugfix] focus/pull-up selection was not behaving according to description

 * This is related to the fix in commit b9d325e
 * Few other places needed to be adjusted to get it to behave as the option's
   description suggests.
Merge pull request #93 from sudaraka/fix-focus-behaviour

Fix focus/pull-up selection was not behaving according to description
Update REAME, HACKING and TODO to use Markdown
tilda.c: Fix set background option
Remove dead code
Make tilda icon themeable
Update the change log for 1.2
1.2.0
Readd NEWS file

 * I removed that files in the markdown commit. But
   that causes an issue when building the Debian
   package so I am reading the file.
Update po/ files
Update the change log for 1.2.1
1.2.1
Add debian/
debian/: Fix control VCS fields
debian/: Clean watch file (must be 3 lines long)
debian/control: Update build dependencies
debian/copyright: Update to DEP-5
debian/copyright: Update Licence
debian/copyright: Update Licence
debian/copyright: Update Licence