Cppman

Features added:
* index.db update.
* Separate keyword table for better queries.
* Add neovim as pager support

Bug fixed:
* Tones of bug fixed, thanks SGSSGene

Bug fixed:
* Several bug fixes and parser improvement.
* pager.sh improvements.
* Fix regexp for python 3.7

Bug fixed:
* Fix in-vim loading.
* Use html5lib instead of html.parser.
* Fix table parser for certain situation.
* Various bug fixes.
* Unify pager script.

Bug fixed:
* Various of bug fix.

Features add:
* MacOS support

Bug fixed:
* Multiple formatting bugs fixed
* Fix typos

Features add:
* Migrate to Python 3

Bug fixed:
* `cache-all` now respect user's selection of source
* fallback to less if vim is not found