Legacy-backports

[CensoredUsername]

Things that need to be ported back to legacy from dev:

• [x] Testing infastructure: this probably can't hurt to be improved a bit on legacy
• [x] e1e6bf2 - issue around labelled menus with a leading say statement
• [x] ab65d9f - replace isinstance(x, unicode) by not isinstance(x, renpy.ast.PyExpr) where possible
• [x] ed4e330 - eagerly advance to the line before a block before printing the block in atl code
• [x] 8c8e1ac - Paraminfo intermediate style
• [x] b840f01 - testcase scroll statement

[CensoredUsername]

• [x] 4d507cf - keep tag of the first line unless requested

[CensoredUsername]

I'll keep this issue open for when new discoveries show up.

[CensoredUsername]

• [x] un.rpyc changes and testing harness (7751a77 - 52d780f)

[CensoredUsername]

• [x] License catchup work
• [x] Moving minimize, codegen into a separate project