Merge reference types repo

.gitignore

@@ -1,3 +1,5 @@
 **/*~
 **/*.tmproj
-_build
+**/*.pyc
+**/_build
+**/_output

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "document/core/util/katex"]
+	path = document/core/util/katex
+	url = https://github.com/KaTeX/KaTeX.git

.travis.yml

@@ -1,11 +1,32 @@
-language: c++
+language: python
+python:
+  - "3.7"
+dist: bionic
 
-sudo: off
+addons:
+  apt:
+    sources:
+      - sourceline: 'deb https://dl.yarnpkg.com/debian/ stable main'
+        key_url: 'https://dl.yarnpkg.com/debian/pubkey.gpg'
+    packages:
+      - ocaml
+      - ocamlbuild
+      - texlive-full
+      - yarn
 
-install: ./interpreter/travis/install-ocaml.sh
+install:
+  - pip install Sphinx==2.4.4
+  - git clone https://github.com/tabatkins/bikeshed.git
+  - pip install --editable $PWD/bikeshed
+  - bikeshed update
 
-script: ./interpreter/travis/build-test.sh
+script:
+  - ./interpreter/meta/travis/build-test.sh
+  - bash ./document/travis-deploy.sh
 
-os:
-  - linux
-  - osx
+os: linux
+
+env:
+  global:
+    - ENCRYPTION_LABEL: "5d9ec396f41d"
+    - COMMIT_AUTHOR_EMAIL: "[email protected]"

LICENSE

@@ -1,202 +1,8 @@
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+Please see the LICENSE file in each top-level directory for the terms applicable to that directory and its relative sub-directories.
 
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+The relevant directories and licenses are:
 
+document/    - W3C Software and Document Notice and License
+interpreter/ - Apache License 2.0
+test/        - Apache License 2.0
+papers/      - Creative Commons Attribution 4.0 International License