shared: add LD_LIBRARY_PATH to point to shared libs
add libs package

A collection of shared libraries:
- flac-1.1.2
- jpeg-6b1
- libav-0.5.9
- libexif-0.6.19
- libid3tag-0.15.1b
- libogg-1.3.0
- libvorbis-1.3.3
- sqlite-3.7.3

At the moment these are used by minidlna (only).
add minidlna package