Mathpad++

This is a fork of Mathpad that adds a few features:

• Added Mathpad:Enable/Disable command

• Added Mathpad:Replace for replacing a selection with the result of its evaluation

• Added Mathpad: File Patterns setting to allow finer control over which files are evaluated
  Default file patterns match *.mathpad and Untitled*
  Matching Untitled* makes using Mathpad as easy as opening a new file with Ctrl+N

• Updated the math.js version to include bin/oct/hex support

• Added Mathpad.library setting to allow users to add expressions and statements that get evaluated before every mathpad session

  For example if you have something like

    "Mathpad.library": [
        "the_answer = 42"
    ]
  

  then you can use the symbol the_answer in new sessions without defining it every time.