Update cadence-release-process.md
Added instruction to update cordova-js in "Before creating the release branch"
Added iOS instruction to update RELEASENOTES.md in "Before creating the release branch"
Update version numbers in cadence release doc to current version.

3.5.0 -> 3.6.0
3.5.x -> 3.6.x
updated cadence process, create archive now defaults to npm pack over git archive, added optional tag argument to print-tags command
cb-7224: added suuport for platforms release process
cb-7224: updated release doc
CB-7224 Updated platforms-release-process.md
copied over changes in cadence process to platforms process
Update versioning-and-release-strategy.md
Create mobile-spec-release.md
Added cordova.js to tools release process

Cordova-js need to be released when updated because it is a dependency to cordova-lib when using --browserify.
added ios version script update
removed incorrect mobile-spec-release doc
Merge branch 'cb-7224' of https://github.com/stevengill/cordova-coho into cb-7224