Separate environment for term chunks in tex format
New tests for Gadfly and figure formatters, small fixes to formats
Bug fix: environments with figures in latex
Clear the Sanbox for running code for each document
Tests and small fixes to Winston support
Updated travis and README
xvfb-run to travis for Winston
Bug fix: eval=false was excluding code from output
Updated tests for chunk options
Tests for pyplot and minor fixes
Fix to travis
Updated tests, release notes for 0.0.3
Added dpi option for Gadfly pngs
updated package requirements and travis config