Helping out with M4RI and M4RIE

M4RI and M4RIE are two libraries I maintain for fast operations on matrices over and respectively. I was just asked by a fellow Sage developer whether I could provide some ideas for how to contribute. Thus, I created some enhancement tickets for M4RIE and updated some tickets for M4RI. Let me know if anything is unclear, if you can think of other projects and if you want to help out which would be greatly appreciated.