added plugin versions to pom
pom format
deleted MANIFEST.MF
better appender name
updated to matlabconnector 4.1.0
updated SLF4J and JUnit versions, added hamcrest
updated maven plugins
Override annotations
removed static method
refactored json package
some optimizations
removed super() call
refactored server main class
use executor for server threads
removed unused modifiers
some improvements
refactored client
restructured packages
bumped version to 2.0-SNAPSHOT
refactored MLInstance{,Pool}