linux 0.9.4: Broken installation layout.

[leamas]

The SpotifyHelper in 0.9.4 lives in the Data directory. This seems broken for two reasons.

• The data directory has until 0.9.4 been used for non-arched resources. Generally,  this is also what a directory called Date could be assumed to contain.
• The RPATH in Spotifyhelper is $ORIGIN. However, there are no libraries in the Data directory.

Together, this looks broken. The simple solution is probably to store SpotifyHelper in the same directory as the spotify binary and the bundled libraries. For now, the workarund is to use a LD_LIBRARY_PATH pointig to the directory with bundled libraries. Such hacks should not be required, though.