Minor performance improvement

Changes:

• Minor source code refactoring.
• Minor performance improvement on nested routers detection.
• Adding Benchmarks topic to readme.

Updating packaging

Changes:

• Removing not required files from module package.
• Updating dev dependencies.

Fixes error propagation inside nested routers

Fixed:

• Error propagation inside async handlers in nested routers

Removed:

• package-lock.json file was removed from module

Improve Node.js HTTP server compatibility in "low"

• The req.url also contains query string.
• The req.path value is now consistent across nested routers in/out

Fix double callback issue

Fixing double callback issue on next middleware engine

Sequential router improvements

Router query string support (#8)

* v2.1.0
* ignore query strings during requests matching
* allowing prefix to be optional in global middlewares
* improving test cases

v2

V2 (#7)

* making sequential default router

* updating deps

* updating documentation

* supporting nested routers

* updating demos

* updating benchmarks

Dependency updates

"dependencies": {
    "find-my-way": "^2.1.0",
    "trouter": "^3.1.0"
}