Updated nodejs connector to 1.1.1

Implemented higher level API to make it more modular
Using promises and callbacks
Argument binding is now available e.g query(select ? from ?).bind("*", "table")

Added local documentation and updated README

fix #174

Update docs within files, better naming, and added some async functionality

- Using _ to indicate variable/function is private and shouldn't be accessed
- Added JSDocs syntax to generate documentation
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Added node.js connector and example usage of node.js

Update tsched.c

fix buffer overflow and memory leak.