Update EMBL.pm

When unable to open file for reading add the reason for failure.
Update Fastaq.pm

When unable to open file for reading add the reason for failure.
Update SwissPfam.pm

When unable to open file for reading add the reason for failure.
Update GeneBank.pm

When unable to open file for reading add the reason for failure.
Update Qual.pm

When unable to open file for reading add the reason for failure.
Update Fasta.pm

When unable to open file for reading add the reason for failure.
Update bp_oligo_count.pl

When unable to open file for writing add the reason for failure.
Update GenBank.pm

fix typo $1/$!
Fixed bad filename

Was "sample_dataset.tigr " instead of "sample_dataset.tigr" (no trailing space)
Also made style more consistent
Fixed filename in test

Should be ">$o_file" and not "> $o_file"
Also did miscellaneous cleaning (tabs, parentheses)
Merge pull request #65 from MartinMcGrath/master

Add reason for failure of file IO