Add more informative error message to PhenIX when no HPO terms have been supplied about exomiser

[julesjacobsen]

Added a new RunTimeException to PhenixPrioritiser with the message "Please supply some HPO terms. PhenIX is unable to prioritise genes without these.":

2015-02-10 16:48:35,391 INFO  de.charite.compbio.exomiser.core.Exomiser [main] - MAKING GENE FILTERS
2015-02-10 16:48:35,391 INFO  de.charite.compbio.exomiser.core.Exomiser [main] - Calculating inheritance mode for genes which passed filters
2015-02-10 16:48:35,418 INFO  de.charite.compbio.exomiser.core.Exomiser [main] - MAKING PRIORITISERS
2015-02-10 16:48:35,419 INFO  de.charite.compbio.exomiser.core.prioritisers.PriorityFactory [main] - Made new OMIM Priority: de.charite.compbio.exomiser.core.prioritisers.OMIMPriority@67389cb8
Exception in thread "main" de.charite.compbio.exomiser.core.prioritisers.PhenixPriority$PhenixException: Please supply some HPO terms. PhenIX is unable to prioritise genes without these.
        at de.charite.compbio.exomiser.core.prioritisers.PhenixPriority.<init>(PhenixPriority.java:131)
        at de.charite.compbio.exomiser.core.prioritisers.PriorityFactory.getPhenixPrioritiser(PriorityFactory.java:90)
        at de.charite.compbio.exomiser.core.prioritisers.PriorityFactory.makePrioritisers(PriorityFactory.java:62)
        at de.charite.compbio.exomiser.core.Exomiser.analyse(Exomiser.java:72)
        at de.charite.compbio.exomiser.cli.Main.runAnalysis(Main.java:130)
        at de.charite.compbio.exomiser.cli.Main.main(Main.java:62)