test with latest Clojure RC4
update dependencies
use latest core.matrix dep
doc edits
rempve explicit dependency on DiagonalMatrix
tidy requires
tidy requires
misc edits
Merge branch 'develop' of https://github.com/mikera/vectorz-clj.git into develop
use latest core.matrix
Updated project.clj from pom.xml
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