Categorizes reactions from RMG-Java chemkin file better by including  families.  
Categorizes reactions from RMG-Java chemkin file better by including 
families.  

Also fixed duplicate reactions handling.
nyee/RMG-Py,enochd/RMG-Py,faribas/RMG-Py,chatelak/RMG-Py,comocheng/RMG-Py,KEHANG/RMG-Py,pierrelb/RMG-Py,chatelak/RMG-Py,faribas/RMG-Py,nickvandewiele/RMG-Py,nickvandewiele/RMG-Py,KEHANG/RMG-Py,comocheng/RMG-Py,pierrelb/RMG-Py,nyee/RMG-Py,enochd/RMG-Py