fix out of bounds panic
add gob methods to make ProposeUpload feasible
implement resize_sec and prop_upload
add functions for resize_sec and prop_upload
use single Println() statement in help message
Merge pull request #158 from lukechampine/client

Support for ResizeSectorErase and ProposeUpload
add atom calculator to client
Fix MerkleCollapse
begin implementing the upload diffs for client
Merge pull request #159 from DavidVorick/upload

Fix MerkleCollapse