[FIX, FEATURE] Enhanced parser.
[FIX, FEATURE] Enhanced/adapted the gff parse and added a readOne function.
[FIX, FEATURE] Moved the macro SEQAN_TEST_EXCEPTION to basic/test_system.h
[FIX] Edited the seq_io test to include the right header file.
[FEATURE] Added a new exception test.
[FIX, FEATURE] Adapted the gff parser to the new stream module.
Merge branch 'vcf_io' into ucsc_io
[FIX] Complete the ucsc test.
Merge branch 'ucsc_io' into bed_io