Release 3.3.0

[osana]

A few weeks have passed since the last release of 3.2.0. A few bugs have been squashed since then including:

• add reverseMode parameter to Geocoding Service (added reverseMode parameter to Geocoading Service #843)
• doc changes (StaticMap javadocs typo fix #840) (Fix Point Javadoc #835)
• static map request format Static image marker fixes #836 (Static image marker fixes  #839)
• add waypoint names (added waypoint names #831)
• add approaches to RouteOptions (Add approaches to RouteOptions #830)

Release checklist @osana

• If_ there's a new SNAPSHOT version, then update this repo's README.md file
• Change version name to 3.3.0 in gradle.properties
• Publish 3.3.0 artifact to Maven Central
• Change version name back to 3.4.0-SNAPSHOT
• Update CHANGELOG.md
• Tag v3.3.0 in GitHub
• Update dependencies in the Maps SDK

Post-release @langsmith

• Update Javadoc for the Mapbox Java docs section in /android-docs repo
• Update the constants.js file in android-docs repo so that compile 'com.mapbox.mapboxsdk:mapbox-sdk-services:x.x.x' line is updated in the Gradle section of the MAS overview page
• Update the Android demo app
• Update version # in config files in /help @langsmith
• Update version # in Studio Preview
• Update version # in cnplgn

/cc: @mapbox/android

[langsmith]

Done 🎆