Show me the locii

• Added --outseq to get a FASTA of the hits (needs bedtools)
• Supports reading stdin for piping
• Now in Conda and Brew
• Improved documentation
• TRAVIS testing
• Fix return codes for --help etc
• Fixed missing 18S model in euk
• Clarify mito is Metazoan only
• Prefer nhmmer at front of $PATH first