Clean up the MANIFEST to silence missing file warnings for files
usually generated by "perl Makefile.PL".
Silence some compiler warnings generated when compiling with Perl's
that are compiled with a higher level of warnings.
Have git ignore a few additional files created while building and
testing the module.
Format the installation steps in the README.md
Merge remote-tracking branch 'remotes/origin/pr/1'

Conflicts:
	.gitignore
	NYTProf.xs