[prog-model] Readthrough. Add todo and minor fixes
[prog-model] Add todo. Sentence fixing.
[Prog-model] Rewrite start and end
Address prog model todos
Add headlines to prog model section
Update diagrams in CPU chapter
Add memory map overview
Rewrite CPU chapter to address feedback
wip comments
Address second round of feedback
architecture overview
kernel launch
Processor core, iteration
register directory
mostly diagram fixes
fixes isuues -> issued tupe
Address GitHub comments
Feedback from Julian
Merge pull request #101 from dmpro2014/cpu-refactor

Cpu refactor
Address final GitHub comments