Merge branch 'dev' into storage
Merge pull request #943 from andrerod/dev

Fix blob upload in node 0.6
Merge branch 'dev' into storage
split huge page ranges into small pieces
use instant download/upload speed
fix bug in page range stream
apply review comments
Merge branch 'release-0.7.13' into storage
fix buffer counter bugs in chunkAllocator
immediately fire user callback when one of batch operations failed
apply review comments
Merge pull request #962 from xmbms/storage

Improve the blob download/upload feature