Added -list option to display all available repositories (organisms)
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files

Conflicts:
	reference_track_management.pl
Merge branch 'accept_gff_files' of github.com:nds/reference_track into accept_gff_files
Display usage when no arguments are provided
Merge pull request #19 from nds/accept_gff_files

Display usage when no arguments provided