trying to overcome timing problems (race condition) by adding wait;
added simple landing test to basic DataExplorerPageTest
rename test to DatasetExplorerTest; fixed page referance
moved tests out of default package into 'tests' package
moved analysis test to new package tests.analysis
moved GSE8581_KEY to Constants
moved GSE8581_KEY to Constants
make sure and scan all packages for *Tests* and *Specs*
Initial Version of test of Heatmap Analysis