Merge pull request #19 from mars0i/develop

Updated project.clj from pom.xml
use latest vectorz release
fix slice bug (slice on 1D vector should return scalar value)
Use addCopy and subCopy with appropriate coercions
make sparse? protocol work
implement row and column setting protocols
[maven-release-plugin] prepare release vectorz-clj-0.21.0
[maven-release-plugin] prepare for next development iteration
fix error with latest vectorz snapshot
update to latest vectorz release
typo fix
fix set-nd bug with AMatrix
fix vectorz-coerce type hinting
update project.clj to latest vectorz version
[maven-release-plugin] prepare release vectorz-clj-0.22.0
[maven-release-plugin] prepare for next development iteration
update core.matrix dep
add namespace for test.check property testing
start of generator code
more usage of immutable operations