Global middleware applies to router handler now

Fixed variable scope for mounted net http router

Optimise mount method

Fix go sum server

Fix sub router sub path matching, improve performance

Hotfix root route check

Update fasthttp version

Performance upgrade.

• preselecting root node and matching path agains smaller tree.
• reduced allocations

Data taken from travis builds (before/after):

- BenchmarkStatic1-4              	12678802	        92.1 ns/op	       5 B/op	       1 allocs/op
+ BenchmarkStatic1-4              	25116511	        46.1 ns/op	       0 B/op	       0 allocs/op

This minor version update includes fixes for middleware

• execution order
• middleware to node matching between different node types (static/wildcard etc)

Adding a middleware to non existing path will panic now https://github.com/vardius/gorouter/commit/0d328e69d797c06213283c94fb08bd921c9a0e2e

Fix and add Compile method to interface.

• Subrouter match delegates to inner node instead of reimplementing the wheel
• Improves subrouter matching performance

• Fix subrouter matching for different inner node types

• Overall mux refactor
• Performance improvement
• Fasthttp router store params object in context instead of each parameter separately

• Add fasthttp adapter
• Improve middleware performance by pre-caching handlers

This release is adopting modules for the first time for a pre-existing repository that have already been tagged v2.0.0 or higher before adopting modules.

Readme more here https://github.com/vardius/gorouter/issues/11

You can mount http.Handlers now as a sub router