Enable release and nightlies on travis
Merge pull request #176 from aviks/patch-2

Enable release and nightlies on travis
Closes #180, #181, #183
Closes #182, possibly #179
Revert Travis changes
Revert Int64 to Int changes (#179)
Merge branch 'master' of github.com:JuliaStats/Distributions.jl
update dependencies
replace deprecated symmetrize! functions
replace unsafe_view with view
removed redundant entropy function for Chi
fix rand! for Beta distribution
use GammaSampler

The introduction of GammaSampler to capture the pre-computation & sampling for gamma random number generation simplify codes that rely on the generation of gamma random numbers.
Added gradloglik (gradient of logpdf)
Added test for gradloglik
Merge pull request #188 from scidom/master

Added gradloglik (gradient of logpdf)
Added gradloglik for some multivariate distributions
Forgot an export in Distributions.jl
Merge pull request #189 from scidom/master

Added gradloglik for some multivariate distributions
Travis: install package in proper directory for testing