move options before args

options are not positional (-mindepth affects tests specified before it as well as those specified after it).  Options should be specified before other arguments.
invoke tab-completion for the VVV install directory prompt
Another place where read is invoked
switch to installing WordPress via WP-CLI

SVN is on its way out as the WordPress SCM system of choice, and it's
slower than an outright download of latest.zip. WP-CLI will install from
the latest stable version, and doesn't leave a messy trail of .svn
subdirectories.
Caught some wp lines without --allow-root

also since wp-cli.yml specifies the path, no need for the --path option
Merge pull request #7 from DArcMattr/all-wp-cli

Switch to using WP-CLI for installing/updating site files
Remove unnecessary whitespace in the vvv-init.sh file
Update the recap of what's happening to mention the wp-cli.yml file
Update readme
Merge pull request #6 from DArcMattr/readline

Allow for tab completions
Remove trailing slash from $path (trailing slash gets added if using tab completion)
Merge pull request #5 from tripflex/master

move options before args
Merge branch 'master' of https://github.com/aliso/vvv-site-wizard

Conflicts:
	vvv
Add WordPress version choice to setup script; attempt to verify validity of version number