Storage Client Library v0.4.0

Changes in v0.4:

• Now supports building on Linux
• Added http_buffer_size request option to control the internal buffer size used in the HTTP layer when downloading data. The default size is 64KB.
• Blob downloads that are interrupted resume automatically from where the download left off when being retried.
• Performance improvement when uploading and downloading blobs.
• Added const version of the operation_context::user_headers() function.
• Fixed incorrect initialization of some members in the cloud_blob_container_properties and retry_info classes.
• Added a default of 24 days for a maximum execution time for an operation
• Changed the exception type if you upload a blob from a seekable stream but the stream is too short for the desired blob length.
  • Used to throw azure::storage::storage_exception in some cases, now throws std::invalid_argument always.
  • Now checks for this case explicitly before the upload is started.
  • Non-seekable streams still throw std::invalid_argument as before.
• Fixed several bugs, including incorrect uses of std::move and compile-time differences between Visual Studio and g++.
• Added client request ID into log lines.
• Upgraded Casablanca dependency to 2.3.0