Fix overflow of 32-bit signed integers when multiplying two 32-bit integers: cast to 64-bit integers first, otherwise matrices with number of elements > 2^31 (e.g. a 48,000x48,000 custom kernel matrix) will not work.
Accidental file included
Clang will not take int64_t as an index into a vector, add [] for int64_t in SGVector
Need a third operator[]

Because the uint32_t used to index vectors elsewhere now cannot choose
between index_t and int64_t (before it only had the choice of
index_t=int32_t)
Other try to fix ambiguities: a single operator[] with int64_t
fix error in SVM notebook
fix release date to monday
add scripts directory
Enabling StreamingHashedDocDotFeatures in modular interfaces.
Merge pull request #1732 from tklein23/develop

Enabling StreamingHashedDocDotFeatures in modular interfaces.
Fixing install instructions: Replaced "./cmake" by "cmake"
Fixing markup in install instructions: Prevent line collapsing, marking shell commands, etc.
Fixing markup in install instructions: Marking headings for better readability
Merge pull request #1734 from tklein23/develop

Fixing install instructions and markup
Simple intro for dimred notebook
Fix ordered list in INSTALL.md
added a few convienience methods and debug output
obtain from generic method
minor updates
added Gaussian mixture model notebook