spineItem.isFixedLayout now takes into account package-level metadata
submodule
Merge branch 'develop' into feature/packageRenditionMetadata
Use the new WIP API for etching all resource data as a full byte array from the SDK side.
Update sub module.
Use fetched bytes for non-html resources.
Merge pull request #43 from readium/feature/packageRenditionMetadata

spineItem.isFixedLayout now takes into account package-level metadata
submodule
Return empty stream if resource data was not found.
deep iframe navigator.epubReadingSystem https://github.com/readium/readium-sdk/issues/144
Merge branch 'feature/getAllBytes' into feature/obfuscatedFonts
Fixes regular expression to match HTML <head>

See issue: https://github.com/readium/SDKLauncher-Android/issues/45
Use new PackageResource API in EpubServer
Merge branch 'develop' into feature/obfuscatedFonts
Update sub module