bug fix in glm2_4
Experimental Scopes for tracking Key lifetimes

Experimental 1-entry cache for Vec->Chunk lookups.
mod to makefile for docs site
minor edit to correct space v tab
New packaging/download/instructions page.
undo dead node hacks, change a timeout in Jobs, use an alternate column specification method in quantile test
Merge branch 'master' of github.com:0xdata/h2o
forgot this
Add DeepLearning MNIST example that should lead to better than 1.5% validation error.
Merge branch 'master' of https://github.com/0xdata/h2o
Emphasize download button on packaging page, tone down tabs.
Fix a bug in R summary not being able to handle single column H2O data objects
Merge branch 'master' of https://github.com/0xdata/h2o
You know things are bad when your debug error logs have bugs.
Fixed NA handling issue in Naive Bayes. Currently, any row where any entry is NA will be skipped entirely in the calculation (note this differs from R's handling). Add option in R to auto-filter cols with >= 20% NAs. Fixed some bugs in the demo and R algos.
Fix caching after writes

Reload cache after Chunk is written.
Support printing Frames with no names.
Remove side-effects from toString (was setting some caches)
Remove debug prints
Merge branch 'cliffc-scope'
add some more info if the put during sftp of jar/flatfile fails
bigger timeout on parse/inspect