[closetag addon] Scan forward in document to look for existing closing tag

Issue #2025
[python mode] Add support for hanging indent
[comment addon] Test token type when uncommenting

To make sure it isn't seeing comments that are actually
strings.

Issue #1975
Use phantomjs from npm
[markdown] Option to highlight formatting characters separately
[activeline addon] Fix typo
Remove executable flag from some mode scripts

Closes #2037
[real-world uses] Add kodtest

And update Light Table link
[real-world uses] Fix stray character
Properly implement overlapping collapsed span restriction
support for folds at same location