use new gcc v4.9 march/mtune options
updated readme
missed a few COREI7s
removed older version of patch
linked gcc changes.html
added westmere and broadwell and simplified desc and fixed a few lines
updates to readme and comments
typo in comment
Merge branch 'unstable'

Conflicts:
	enable_additional_cpu_optimizations_for_gcc.patch
	enable_additional_cpu_optimizations_for_gcc_v4.9+.patch
	outdated_versions/enable_additional_cpu_optimizations_for_gcc.patch