Added ExportHeader command for BamConstants.h
Added ExportHeader command for BamConstants.h

kdmurray91/bamtools,sksaskrobinsons/code,iontorrent/bamtools,pezmaster31/bamtools,sksaskrobinsons/code,kdmurray91/bamtools,domibel/bamtools,SANBI-SA/bamtools,pezmaster31/bamtools,SANBI-SA/bamtools,pezmaster31/bamtools,boratonAJ/bamtools,pezmaster31/bamtools,domibel/bamtools,boratonAJ/bamtools,iontorrent/bamtools