upgraded version of uniprotjapi to 201406 to work with http proxy settings

which are set by adding a file uniprotjap.properties on the classpath
added a .gitignore file int src/test/resources to ignore a uniprotjapi.properties for testing
in an environment with an http proxy
upgraded to the latest versions of external-validation lib to fix issues with UniProtjapi behind a proxy
Merge remote branch 'origin/make-ext-val-proxy-compatible' into make-ext-val-proxy-compatible
made the mavenRepoUrl a System properties variable with a default value

this allows for pointing to a local maven repo in order to resolve artifacts.