1.) Corrected headings according to rules of migrations by
placing "=======" on headings in the files
2.) Some headings have extra "====", they are removed
3.) Launchpad url have '~' which makes error: page not found
,so it is removed
Change-Id: I99581025d579f18da9ebe57267fb002cbcba28dd
rally-scenarios is quite strange name for files related to rally jobs.
So rename it to something more reasonable
Change-Id: I4909890fd97ce3bae809c28a28bdda7a4cfdd79d