Re-write commit history mes.Rd

There was some fear that my function (now called solar_daily) would confuse folks looking for the original research paper and code. As such, I've purged references to the old function name to minimize the chances of a search engine leading folks here instead of to the original author's work.
2 jobs for master in 18 minutes and 1 second (queued for 5 seconds)
Status Job ID Name Coverage
  Test
passed #92748543
r-base

00:18:01

 
  External
passed continuous-integration/appveyor/branch