qwt: update 5.2.1 -> 5.2.3

Remove patch that don't apply anymore; use sed instead.
qmmp: update 0.7.6 -> 0.8.2
python-robotframework: update 2.8.5 -> 2.8.6
python-robotframework-selenium2library: update 1.5.0 -> 1.6.0
duplicity: update 0.6.24 -> 0.6.25 (latest stable)
duply: update 1.7.3 -> 1.9.1
evtest: update 1.31 -> 1.32
babeltrace: update 1.2.3 -> 1.2.4
libosinfo: update 0.2.10 -> 0.2.11
yoshimi: update from 1.2.5 to 1.3.0

Fix build by adding LV2 support
firefox: Update to 34.0.5
icedtea: Fix updater to work with latest icedtea changes
icedtea: 2.4.7 -> 2.5.3
icedtea7_web: 1.5.1 -> 1.5.2
icedtea: Simplify update script
icedtea: Regenerate sources.nix
icedtea7: Fix patch
gnuradio: update 3.7.5 -> 3.7.5.1

Build tested.
python-actdiag: update from 0.5.1 to 0.5.3
python-blockdiag: update from 1.3.2 to 1.4.7