Extracting a method object in the inspector.
Filter headers that contain placeholders.
Simplifying how the request body is displayed.
Create some utilities.
Improve query string handling.

No question mark when there are no query parameters.
Introduce ParameterizedHeader.

A facility for creating new headers from a header with placeholder
tokens.
Expose plain and parameterized headers.
Create parameterized header.

Additionally, introducing some view models to help clean up the try it
controller.
Generalize parameterized header.

Now it can be uesd with all named parameters.
Merge branch 'features/custom-headers-58360282'

Conflicts:
	dist/index.html
	dist/scripts/1e2d06a3.app.min.js
	dist/scripts/68e09d8e.vendor.min.js
	dist/scripts/app.js
	dist/styles/88eebadb.app.min.css
Introducing a view model for body content.
Extracting body content into a directive.
Merge branch 'master' of github.com:mulesoft/api-console

Conflicts:
	dist/index.html
	dist/scripts/80ca41aa.vendor.min.js
	dist/scripts/ca0565aa.vendor.min.js
	dist/scripts/e3d67c1f.vendor.min.js
	dist/styles/4f20ecad.app.min.css
	dist/styles/64d893e6.app.min.css
	dist/styles/cbcb261f.app.min.css
Merge branch 'spikes/decompise-try-it'
Updating the dist.
Polish for custom headers.