Standard error as default in error bars

Default error bars type changed in "Plots" subview of the "Normality & Homoscedasticity" view. Now, "Standard Error" is the default value.
Multiple tests corrections

An option for multiple tests correction was added to the "Batch Test" view.
Plots moved to a new view

The "plots" view, that was included inside the "Normality & Homoscedasticity" view, is now a top level view.

In addition, some variables were renamed.