Add Toad Mac Edition

[emaw]

+---
+# Tool name
+name: Toad Mac Edition
+
+# Software language (if applicable, see _data/attr.yml)
+language: JAVA
+
+# License (should be listed in _data/attr.yml)
+license: Freeware
+
+# Maintained: "Actively Maintained" or "Inactive"
+maintained: Actively Maintained
+
+# url of support forum
+support: https://www.toadworld.com/products/toad-mac-edition/f/109
+
+# homepage url
+officialUrl: https://www.toadworld.com/products/toad-mac-edition
+
+# supported operating systems (if applicable)
+environments:
+- windows
+- apple
+
+# (optional) fully supported MongoDB versions that have been tested
+mongodb_versions:
+- 2.6
+- 3.0
+
+# (optional) minimum MongoDB version
+minimum_mongodb_version:
+
+# (optional) Support for MongoDB Enterprise features? None, Limited, Full
+mongodb_enterprise_support:
+
+# Purpose (see _data/attr.yml for valid choices)
+purpose: GUI
+
+# Short description of tool
+description: Toad - Mac Edition is a native Mac application for database development. Designed to help database developers be more productive, the Toad - Mac Edition provides essential database tools for Oracle, MySQL, PostgreSQL and MongoDB.
+
+# image should be added to the img/ directory, ideally 370x200px
+img: TMac.png
+
+# Release Info
+latest_release_version: 2.4.2
+latest_release_date: 2015-06-15
+
+# Github Info
+github_user:
+github_repo:
+
+# Do not change the following settings
+layout: tool
+
+---
+

[stennie]

@emaw, Thanks for the tool suggestion. This PR needs some cleanup: rebase against master, resize image to spec, fact check for accuracy (release dates & supported MongoDB versions). The release date for Toad 2.4.2 appears to be June, 2016 (not 2015) and if this tool is actively maintained, I would also expect support for MongoDB 3.2.

I'm going to close this PR since it's not mergeable in its current state, and have added #113 to track the request. If you have time to submit a clean PR, that would be great. Otherwise will get to this, eventually ;-).

Thanks,
Stennie