Adding DssW authbuddy

Adding security rights tool from DssW.
Updated to latest version approach

Following @NanoXD advice to use latest for version and disable checksum.
Added check for 'HTTP/1.1 302 Found'
Created Cask for CrossPack-AVR

obdev CrossPack-AVR is a distribution of open source AVR development tools, including avr-gcc
Add developer scripts

Automates the procedure documented in CONTRIBUTING.md
Add Stay 1.2.3
Flash Player 12
MacBreakZ 5
Merge pull request #2431 from ahbeng/macbreakz

MacBreakZ 5
Merge pull request #2430 from ahbeng/flash

Flash Player 12
Merge pull request #2407 from bradfeehan/master

Add Stay 1.2.3
Overhaul USAGE.md

- Include all current commands
- Use new functionality to skip explicit "brew tap" commands
- Document all forms for specifying Casks (URI, etc)
- Demote "Additional Taps" section to near the end
- Other small tweaks too numerous to list
update texmacs checksum
Added cask for BeardedSpice
Merge pull request #2436 from poltak/beardedspice

Added cask for BeardedSpice
zero-ad: Alpha 15
Merge pull request #2438 from jaimeMF/zero-ad

zero-ad: Alpha 15
Merge pull request #2435 from rolandwalker/texmacs_checksum

update texmacs checksum
Merge pull request #2355 from stonehippo/crosspack-avr-pr

Created Cask for CrossPack-AVR
Spin out HACKING.md from CONTRIBUTING.md

Create a bunch of guidelines/FAQs based on stuff gleaned from
PR discussions and IRC.  Obviously this is just a starting
point.