Fix typo on home page
Merge pull request #9 from JensNRAD/thresholding

Thresholding
Add lazyflow and volumina licenses to license page.
download.html: Updated links for all platforms except Windows.
download.html: Switched mavericks link back to '5c' since the 1.0.6 binary was messed up.
Upgraded to ilastik-1.0.6-win64.exe
Fixed a syntax error that jekyll complained about.
download.html: Updated links to 1.0.7 for Mac,Linux.  Also, transposed table row/column orientation.
Upgraded to ilastik-1.0.7-win64.exe
docs: counting: Emphasized dot placement guidance.
docs: object classification: Mention size limitations for training.
Closes ilastik/ilastik#743
download: Added denk EM dataset to download page.
carving: Made an explicit reference to the example data.
add a form to subscribe to the mailing list
Fix mailing list subscription form.
mention user-defined features
Add tracking script.
re-align subscription form, copy to downloads page
release notes from 0.5, first version
diff to 1.0.* in release notes