CB-5980 Updated version and RELEASENOTES.md for release 0.4.1
Merge branch 'dev' (early part)

Conflicts:
	RELEASENOTES.md
	plugin.xml
Upleveled from android port with following commits:
3c1ff16 Andrew Grieve - CB-5762 android: Fix lengthComputable set wrong for gzip downloads
8374b3d Colin Mahoney - CB-5631 Removed SimpleTrackingInputStream.read(byte[] buffer)
6f91ac3 Bas Bosman - CB-4907 Close stream when we're finished with it
651460f Christoph Neumann - CB-6000 Nginx rejects Content-Type without a space before "boundary".
35f80e4 Ian Clelland - CB-6050: Use instance method on actual file plugin object to get FileEntry to return on download
CB-6466 Auto-create directories in download

Bringing WP8 in line with the other platforms to automatically create
missing directories in filetransfer.download().
Merge dev branch @ 'r0.4.3' into master for release
Merge branch 'dev' into master

Futher development should take place on master
Merge branch 'wp8-file-transfer' of https://github.com/stacic/cordova-plugin-file-transfer
CB-6491 add CONTRIBUTING.md