Update README

Edits sentences for spelling, capitalization, and grammar. Edits sentences for contextual consistency and clarity. Adds some missing descriptions.
Changes '[version]' and paragraph about override options

Changes '[version]' to 'x.y.z' based on feedback from ashp. Adds additional options to override options paragraphs.
Merge pull request #410 from laurenrother/readme

Update README
Bugfix for mysql_grant provider when we try to grant remove privileges
on PROCEDURE. Resolve for bug https://tickets.puppetlabs.com/browse/MODULES-130
(https://github.com/puppetlabs/puppetlabs-mysql/issues/378)
Add system test to cover procedure creation scenario
Remove duplicate service_provider description

The `service_provider` parameter was explained in the README twice, so I've removed one of them.
Merge pull request #421 from lboynton/patch-1

Remove duplicate service_provider description
Merge pull request #412 from n1tr0g/master

mysql_grant fixed to properly handle PROCEDURE grants
fixed a problem with the mysql_database provider
Enable fast finish in Travis

http://blog.travis-ci.com/2013-11-27-fast-finishing-builds/
Test against Puppet v3.4.0
Merge pull request #423 from ghoneycutt/travis_enable_fast_finish

Enable fast finish in Travis
Merge pull request #424 from ghoneycutt/test_puppet_3_4

Test against Puppet v3.4.0
Actually use upstart on Ubuntu by fixing misspelled variable name
Merge pull request #425 from radford/fix-service-provider

Actually use upstart on Ubuntu by fixing misspelled variable name
Noop indent and cleanup the my.cnf template
Allow options with values of false to override things that mysql default to true

instead of being elided, leaving the default.
Allow override_options to set an option to undef to completely remove it

allowing reverting to mysql's default value.

Note that previously a value of :undef would have led to a nonsensical
my.cnf file.
mysql_deepmerge should treat underscore and dash equivalently, as mysql does
Merge pull request #426 from radford/my-cnf-false

 	Allow an option with a value of false to override something that mysql defaults to true rather than eliding it