Unify name format for generated package (win/osx/linux)
 - The name of the generated distributable package starts with pms-${project.version} followed by OS specific parameters. In the current state it results in pms-1.90.2-mlx_0.9-SNAPSHOT
Prepare for release 0.9
 - Remove -SNAPSHOT from POMs for projects being released
 - Exclude plugin TmdbRater because it isn't functional in its current state
 - Exclude plugin WebService because it hasn't been maintained and allows to browse the file system of the machine running pms without authentication
 - Updated changelog