Update schema.xsd

Removed hard-coded schema location.
Update schema.xsd

Removed hard-coded schema url.
Update schema.xsd

Removed hard-coded schema url.
Update schema.xsd

Removed hard-coded schema url.
Update schema.xsd

Removed hard-coded schema url.
Update schema.xsd

Removed hard-coded schema url.
Update schema.xsd

Removed hard-coded schema url.
Clean up.
initial pass at wps for summarizing attribute data
Merge branch 'deploy'
compute std dev and mean to test
added simple json py lib. also improvements to summarize wps. works for number and strings
resolved conflict
handling date as strings. also added variance
Cast val when during the uniqueValue lookup.
Remove un-needed was script.
Added the unqiueValueCount to the summarize statistics wps.
The summarize_attrib wps will not return NaNs.