CB-5188:
Added amazon-fireos platform.
Change to use amazon-fireos as the platform if the user agen string contains 'cordova-amazon-fireos'
add ubuntu platform
CB-5466: Update FileTransfer plugin to accept filesystem urls
CB-5466: Minor version bump
Merge branch 'dev' of https://git-wip-us.apache.org/repos/asf/cordova-plugin-file-transfer into dev
added ubuntu support
CB-5466: Partial revert; we're not ready yet for FS urls
[CB-5565] Updated version and RELEASENOTES.md for release 0.4.0