make it possible to switch to a new client using 'cl work' if current client is broken (can't access it)
fix zip of multiple files: makes 'cl upload dataset a b' work remotely
Merge branch 'pliang' of github.com:codalab/codalab-cli into pliang
allow 64-bit integers to be marshalled across XMLRPC; use only 'int' type, not 'long' for consistency
Merge branch 'pliang' of github.com:codalab/codalab-cli into pliang
remove debugging
remove 'long'; always use 'int' for consistency
render time as a duration
allow searching by data_hash
readlink so we can symlink to cl
set write permission before can move or remove files
Merge branch 'pliang' of github.com:codalab/codalab-cli into pliang
fix bug
remove --name from args
Merge branch 'master' into pliang
Merge branch 'master' into pliang
Merge branch 'master' into pliang
fix test
Merge pull request #107 from codalab/pliang

backend fixes