disabled scrollWheelZoom with any version of Leaflet

• for Leaflet v1.0.1, it doesn't disable scrollWheelZoom without redundant setting option. (oct, 13, 2016)

Tron, Tangram v0.10, standalone

• bumped up Tangram version to v0.10
• added Tron style to BasemapStyles
• made standalone release supported by mapzen.com cdn

fixed standalone deploy syntax

Merge pull request #263 from mapzen/hanb/add-standalone

fixed deploy syntax

included standalone version in release process

• standalone (js, min version of js, css) version files are now in release process.
• added some examples for standalone version
• replaced locator to hand-rolled one

Corrected dependancies of package.json

Some dependencies which shoudln't be devDependencies were categorized as dev. Put them in dependencies.

Corrected main file of npm package

• Corrected main file of npm package based on user report and npm package guideline

Documented new unified API keys

Added documentation to reflect unified Mapzen API keys and fixed some docs typos.

removed custom behavior for double click

• removed custom bahavior of double click to make it zoom around clicked point
• clarified the documentation about Tangram

improved hash component

• added reset functionality to hash component
• fixed error when only geocoder is passed to hash

fixed iframe check

MapzenJS is supposed to detect the map is iframed or not, and disable scrollwheezoom if it is. This function was not working. fixed it.