1.0.26 - various fixes

Additions:

• live_execute_string now takes optional rest-arguments that will be available as argument[] in executed code.

Improvements:

• Macros with live_call in them are now supported - you can now do
  #macro alive if (live_call()) return live_result
• Statement macros are now supported.
• Switch-blocks with non-constant expressions are now supported.
• The server window now sticks around in case of errors.

Fixes:

• Fixed a handful of function signatures.
  (argument errors in GMLive where they don't error in normal GML)
• Fixed an issue with nested macros.
  (if a macro A referenced macro B, using macro A wouldn't auto-include 
• Fixed tilesets not being accessible by asset name in live code.
• Fixed `var a, var b` not being considered valid syntax.
• Fixed `in` not being allowed as identifier in live code.

Currently without a GMS1 release since I found another hard-crash bug, obviously that's not getting fixed (GMS1 having been sunset a while ago and all), and it is very time-consuming to workaround such things.