Removed tutorials project and fixed minor typo in README.
Merge pull request #21 from jcccf/vecunionlen

Added UnionLen to TVec
minor edits
minor comment edits
added zydemo example that demonstrates the use of libzygote
Merge pull request #22 from roks/master

added an example for libzygote
minor edits
updated RELEASE.txt for Snap 2.0
removed a redundant gtest include in demo-triad.cpp
minor update in RELEASE.txt
updated zygote documentation
moved TVec::Send() and WriteN() to util.h
updated RELEASE.txt for Snap 2.0
made Snapworld functions defined only on Unix-like systems
minor editing changes
fixed zygote example on Mac OS X, moved WriteN() to util.cpp to prevent compile warnings on Mac OS X
Merge branch 'master' of github.com:snap-stanford/snap