Updating PackageInfo.g and CHANGES for release

Author: nathancarter

CHANGES

@@ -23,3 +23,7 @@ February 2019
  - If being run from the GAP REPL, plotting functions create temporary HTML
    pages with visualizations in them and display them using the system's
    default web browser.
+
+March 2019
+ - Point release with a bug fix regarding rendering graphs from the REPL.
+

PackageInfo.g

@@ -28,15 +28,15 @@ SetPackageInfo( rec(
 
 PackageName := "JupyterViz",
 Subtitle    := "Visualization Tools for Jupyter and the GAP REPL",
-Version     := "1.5.0",
-Date        := "26/02/2019", # Release date of current version, dd/mm/yyyy
+Version     := "1.5.1",
+Date        := "28/03/2019", # Release date of current version, dd/mm/yyyy
 
 ##  Optional: if the package manual uses GAPDoc, you may duplicate the
 ##  version and the release date as shown below to read them while building
 ##  the manual using GAPDoc facilities to distibute documents across files.
 ##  <#GAPDoc Label="PKGVERSIONDATA">
-##  <!ENTITY VERSION "1.5.0">
-##  <!ENTITY RELEASEDATE "26 February 2019">
+##  <!ENTITY VERSION "1.5.1">
+##  <!ENTITY RELEASEDATE "28 March 2019">
 ##  <#/GAPDoc>