add new demo anime and update test case

Author: chfw

.moban.d/gantt.rst

@@ -8,12 +8,13 @@ Here is `a sample csv`_ file::
     Task 3,Write up the documentation,2017-07-21,2017-07-22,0,Task 1,,
     Task 4,Release pyexcel-gantt,2017-07-23,2017-07-23,0,"Task 2, Task 3",,bar-milestone
 
-.. image:: https://github.com/pyexcel/pyexcel-gantt/raw/master/demo/demo.png
 
 What you can do is to view it with pyexcel's `command line interface`_:
 
     pyexcel view --in-browser --output-file-type gantt.html demo/tasks.csv
 
+.. image:: https://github.com/pyexcel/pyexcel-gantt/raw/master/pyexcel-gantt.gif
+
 
 Programmatically, you can do the following:
 

README.rst

@@ -45,12 +45,13 @@ Here is `a sample csv`_ file::
     Task 3,Write up the documentation,2017-07-21,2017-07-22,0,Task 1,,
     Task 4,Release pyexcel-gantt,2017-07-23,2017-07-23,0,"Task 2, Task 3",,bar-milestone
 
-.. image:: https://github.com/pyexcel/pyexcel-gantt/raw/master/demo/demo.png
 
 What you can do is to view it with pyexcel's `command line interface`_:
 
     pyexcel view --in-browser --output-file-type gantt.html demo/tasks.csv
 
+.. image:: https://github.com/pyexcel/pyexcel-gantt/raw/master/pyexcel-gantt.gif
+
 
 Programmatically, you can do the following:
 

docs/source/index.rst

@@ -21,12 +21,13 @@ Here is `a sample csv`_ file::
     Task 3,Write up the documentation,2017-07-21,2017-07-22,0,Task 1,,
     Task 4,Release pyexcel-gantt,2017-07-23,2017-07-23,0,"Task 2, Task 3",,bar-milestone
 
-.. image:: https://github.com/pyexcel/pyexcel-gantt/raw/master/demo/demo.png
 
 What you can do is to view it with pyexcel's `command line interface`_:
 
     pyexcel view --in-browser --output-file-type gantt.html demo/tasks.csv
 
+.. image:: https://github.com/pyexcel/pyexcel-gantt/raw/master/pyexcel-gantt.gif
+
 
 Programmatically, you can do the following:
 

pyexcel-gantt.gif

@@ -22,4 +22,4 @@ def test_freeze_js():
 def test_dumps():
     data = [date(2017, 7, 19), datetime(2017, 7, 19, 7, 22, 0)]
     json = dumps(data)
-    eq_(json, ["2017-07-19", "2017-07-19"])
+    eq_(json, '["2017-07-19", "2017-07-19"]')