Add power picture
Rewrite solution power section
Write USB with caps
Correct typos
Add small addition about power structure
Make beginning of power part of discussion

Also add a few ideas on power talk
Start the discussion about usb-data
Add reason for lacking support in software part.
Fix mulitple typos
Correct typos and spelling mistakes
Merge pull request #52 from dmpro2014/spell-fixes

Correct typos and spelling mistakes
Fix typo
Move power consideration part out to single file
Typo fix and formatting
Merge pull request #49 from dmpro2014/discussion-power

Make beginning of power part of discussion
Label fix
Fix according to suggestions.
Fix merge conflicts
Merge pull request #50 from dmpro2014/discussion-usb-data

Discussion usb data
Remove unused appendix