Minor fixes, added user events to tbconnection

-Replaced lua version of base64 with encoder function

Merge pull request #1 from ches/walkthrough

Use more familiar 192.168.4.1 as default gateway

Document default credentials and where to change them

Memory footprint reduction, tbconnection, cleanup

html tables, htm headers, fragmentation logic, file.exists, refactoring

Implemented httpserver gui

confwrite/wifigui form minor changes

Update tftpd.lua

Optimized sending forms

Merge branch 'master' of https://github.com/devyte/nodemcu-platform

Removed some paranoia in wifi-confwrite

Update httpserver-confmakedefault.lua

Removed forgotten debug print()s