chore(project): temporally set jspm version to 0.16.15
chore(project): temporally set jspm version to 0.16.15

jspm@01.16.15 is needed to install depenedency

fixing https://github.com/aurelia/dialog/issues/99

aurelia/dialog,aurelia/dialog,rockResolve/dialog,StrahilKazlachev/dialog,StrahilKazlachev/dialog,rockResolve/dialog