Renamed bitcoin to bitcoin-core

Closes #3634.
add exception for Cask name `bitcoin-core.rb`

references #4277, #3634
Merge pull request #4277 from vitorgalvao/rename-bitcoin

Renamed bitcoin to bitcoin-core
Merge pull request #4300 from rolandwalker/bitcoin_core_name_exception

add exception for Cask name `bitcoin-core.rb`
Add IONU version 1.1

The Most Secure Messaging Tool on the Planet.
Add Mountain 1.4.6_23.
Merge pull request #4330 from wizonesolutions/feature/mountain-cask

Add Mountain 1.4.6_23.
Merge pull request #4329 from vinkla/ionu

Add IONU version 1.1
Updated to current version 1.4.11
Merge pull request #4333 from jps3/master

Upgrade TotalTerminal to v1.4.11