Update RELEASE_NOTES_1_7_alpha.md

Fixed a typo and a couple of phrases. :)
Added Litecoin copyright notice to README.md, for Scrypt elements.
Added Dogecoin copyright notice to README.md.
Fix patch file

Fix the broken patch
Hopefully fix ubuntu builds

 * Change to run on 10.8 (compile against 10.8 sdk)
 * Make sure we only force boost_for in the mac project file where it’s
known to work.
Merge pull request #418 from rnicoll/1.7-dev-readme

Add copyright notices to README.md
Merge pull request #411 from jwiechers/patch-3

Update RELEASE_NOTES_1_7_alpha.md
Fix typos, much wow, so appreciate