Update installer.py

New version of Openresty
Add Lapis requirements
Use CWD for full path to web.lua. Recompile lua.
Try to fix validation for Lapis. Fixed #740
Nail Mongrel2 version to v1.8.1
gemini-1.4 Updating gemini version
gemini-1.4 Fixed classpath
gemini-1.4 Updated codebase
gemini-1.4 Removed old jar
gemini-1.4 Fixed GhVersion
gemini-1.4 Fixes and updates
gemini-1.4 Not sure what happened here
gemini-1.4 Again, not sure what's going on...
gemini-1.4 What is happening!?
gemini-1.4 More changes
gemini-1.4 Fixes for queries
gemini-1.4 Batch support
gemini-1.4 Testing
gemini-1.4 Simple type experiment
master Fixing the issue where nginx is wrong

The installation file suggests that there will only be
one nginx, and that it will be installed at /usr/local/nginx.
I do not know how these dart tests were running when
trying to run a different executable, but I have resolved
them for brand-new installations.
master Fixed a compilation issue with onion