added agent spec and cyclus_path sections to user guide
added simplejson/json error compatability
updated sqlite db type support to include strings, vector string (and permutations)
removed obsolete resource-related content. Started a more proper resources page
added errors and warnings doc
Merge branch 'source' of github.com:cyclus/cyclus.github.com into source
fixed a couple of warnings
gtest fused update
many minor modifications
more rearrangement