Dummy Thumbs, bugfixes

The name for things MUST NOT CONTAIN SPACES
re: http://www.w3.org/TR/html401/types.html#type-name
I know it sounds silly but there is no other way because I use the
variables in the experiment JSON to form valid html.
If you want spaces in the names of the things, use underscore, Ill
write up some changes for that now.
replace spaces

see previous commit.
also the previous commit was regarding timestream and expt names.