Extended StringSlice

Provides the following improvements:

• Added ExistsAny and TrueForAny methods for StringSlice.

Extended and Improved Stability

Provides the following improvements:

• Better Travis-CI testing procedures.
• Added AppVeyor for Windows testing.
• Added Disposable interface and Using function.
• Improved documentation and examples.

Small improvements

Provides the following improvements:

• Better code test coverage
• Better code documentation
• Improved StringSlice API

First release

Provides the following features:

• Predefined error types
• A type to control object lock status
• A function to wait a peer for listening
• Some useful methods for string type slices
• A function to wait another function be ready