Improved UI options and client feedback. Fixed multiple bugs related to CLUSTER_BYTES bounds. Fixed bug where the end portion of the file didn't always get written out on the server because the file stream wasn't always being closed properly. Fixed bug where files that were an exact modulus of CLUSTER_BYTES (4096 bytes) (size when encrypted) wouldn't process their last cluster and would instead segfault. Fixed bug where files that were one or two blocks beyond the CLUSTER_BYTES would be unable to process padding and/or HMAC because of being split into separate clusters for processing.