Merge pull request #42 from daisieh/phylip_fixes

Refactored next_aln in AlignIO/phylip.pm
Merge pull request #43 from daisieh/warn_tempfile

Warns if setting save_tempfiles does nothing. No other changes.
Managed to lose track of the actual refactoring of next_aln
Merge pull request #44 from daisieh/phylip_fixes_2

Phylip fixes 2