made most of the tests in t/ runnable as standalone scripts

t/01.utils/command_line.t

+#!/usr/bin/env perl
+
 # Copyright [1999-2016] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 # 
 # Licensed under the Apache License, Version 2.0 (the "License");

t/01.utils/config.t

+#!/usr/bin/env perl
+
 # Copyright [1999-2016] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 # 
 # Licensed under the Apache License, Version 2.0 (the "License");

t/01.utils/directory_hash.t

+#!/usr/bin/env perl
+
 # Copyright [1999-2016] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 # 
 # Licensed under the Apache License, Version 2.0 (the "License");

t/01.utils/modules.t

+#!/usr/bin/env perl
+
 # Copyright [1999-2016] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 # 
 # Licensed under the Apache License, Version 2.0 (the "License");

t/01.utils/stopwatch.t

+#!/usr/bin/env perl
+
 # Copyright [1999-2016] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 # 
 # Licensed under the Apache License, Version 2.0 (the "License");

t/01.utils/stringification.t

+#!/usr/bin/env perl
+
 # Copyright [1999-2016] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 # 
 # Licensed under the Apache License, Version 2.0 (the "License");

t/01.utils/url.t

+#!/usr/bin/env perl
+
 # Copyright [1999-2016] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 # 
 # Licensed under the Apache License, Version 2.0 (the "License");