first version
done some modifications in thesis tile and section titles
delete the old one's frame of randomness RNG description,
move it to the beginning of Introduction,
remove the picture
add lines
modify the second frame of section 1
remove the CSPRNG definition
femtoBlock modify
modifcation on randomness evaluation frame in section I
modify Chaotic dynamical systems frame
add some modification in chaotic iteration frame
modifications have been done
Merge https://github.com/xiaolefang/defence_ppt