Merge branch 'master' of https://github.com/Eyescale/Equalizer
Fix #270: eq::Server::chooseConfig fails if eq::init is called with an empty argument list
Cosmetics for #270
Merge pull request #271 from eile/master

Fix #270: eq::Server::chooseConfig fails
Extracting classes dealing with PLY format into plyLib

At the moment these classes are part of eqPly code, but they are
used by other examples, like seqPly and tools like eqPlyConverter.

The classes are usefull enough to be used in other projects.