Merge pull request #1 from alvaroabascar/master

Included proposed style changes.
Further style changes.
Upgraded getMeanLength to getFastaStats
Added acknowledgements to README
Added N50 calculation to getFastaStats, renamed to getStats
Minor correction to getStats
Updated getGC to optionally return total GC, included this in getStats
Minor addition to getStats
Added getMotifFile for file input
Merged findMotif with findMotifFile. findMotif now auto-detects sequence input type (str/file)
Added countRepeats
Added findKmers
Added predictMT and groundwork for direct execution
Updated countNucs to automatically distinguish DNA/RNA and count Ns if present
Updated README
Added getStats, predictMT & findKmers to cmd line execution.
Added findConsensus, translate & transcribe to cmd line execution. Renamed RNAtoPro to translate.