Bug fix - Bash is the default shell instead of DASH.

Due to the large number of bashisms, some packages fail to build or fail to
check for the existence of dependencies.
Bug fix - hpm always tries to execute the post-removal script.
Package updates.

  - FFmpeg 1.2 -> 1.2.1
  - Galculator 2.1 -> 2.1.2
  - ncdu 1.9 -> 1.10
Removed gtkdialog and Yad.

In addition, tcpdump, glibc debugging symbols and libgtk2.0-common were added.