Adding cask for SoqlXplorer.app v.2.00 (Salesforce API v30)

This commit is for SoqlXplorer by Simon Fell (@superfell), an awesome
DB/Schema explorer for Force.com Developers on OSX

corrected soqlexplorer
Merge pull request #3732 from vitorgalvao/adamdaw-soql-xplorer

Adding cask for SoqlXplorer.app v.2.00 (Salesforce API v30)