[#84344954] bug(koast resource) Fix koast resource save

If base url was set during app init, resource.save and create resource were
not picking up the baseurl during app init. Changed code to use _koastHttp
instead of $http which manages this.
Merge pull request #18 from e-schultz/bug-fix-resource-saving

[#84344954] bug(koast resource) Fix koast resource save