fix issue 5314

 - reduce minfinalheight to 16
 - revert jasmine tests to what we had before commit 565f942

Author: archmoj

src/plots/plots.js

@@ -1867,7 +1867,7 @@ function initMargins(fullLayout) {
 }
 
 var minFinalWidth = 64; // could possibly be exposed as layout.margin.minfinalwidth
-var minFinalHeight = 64; // could possibly be exposed as layout.margin.minfinalheight
+var minFinalHeight = 16; // could possibly be exposed as layout.margin.minfinalheight
 
 /**
  * autoMargin: called by components that may need to expand the margins to

test/image/baselines/automargin-large-margins.png

@@ -170,7 +170,7 @@ describe('Indicator plot', function() {
                 return Plotly.relayout(gd, {width: 200, height: 200});
             })
             .then(function() {
-                checkNumbersScale(0.4794007490636704, 'should scale down');
+                checkNumbersScale(0.2, 'should scale down');
                 return Plotly.relayout(gd, {width: 400, height: 400});
             })
             .then(function() {

test/image/baselines/legend_small_horizontal.png

@@ -403,7 +403,7 @@ describe('The legend', function() {
                 expect(countLegendClipPaths(gd)).toBe(1);
 
                 // clippath resized to new height less than new plot height
-                expect(+legendHeight).toBeGreaterThan(getPlotHeight(gd));
+                expect(+legendHeight).toBe(getPlotHeight(gd));
                 expect(+legendHeight).toBeLessThan(+origLegendHeight);
 
                 done();