adding argument descriptions and tests for scripts/ graduation
new test file with Ns for test_scripts & added test_fastq-to-fasta in test_scripts
Testing optional argument for higher coverage
FASTQ-TO-FASTA output now to stderr, refactoring of test script
FASTQ-TO-FASTA output now to stderr, refactoring of test script
improved debugging for test_scripts.py
added testing for exclusion of -o argument in test_scripts.py
Updated ChangeLog
removed fastq-to-fasta from sandbox (moved to scripts)
Merge branch 'fix/fastq-to-fasta_toscripts'

Conflicts:
	sandbox/fastq-to-fasta.py