Update boxstarter package
svn 1.8.4
imagemagick 6.8.7.4
Merge branch 'master' of github.com:bdukes/Chocolatey-Packages

Conflicts:
	bdukes.boxstarter/bdukes.boxstarter.nuspec
	bdukes.boxstarter/tools/chocolateyInstall.ps1
	imagemagick/imagemagick.app/imagemagick.app.nuspec
	imagemagick/imagemagick.app/tools/chocolateyInstall.ps1
	imagemagick/imagemagick.tool/imagemagick.tool.nuspec
	imagemagick/imagemagick.tool/tools/chocolateyInstall.ps1
	imagemagick/imagemagick/imagemagick.nuspec
	svn/svn.nuspec
	svn/tools/chocolateyInstall.ps1