Specify that python2 (not python3) is required
Issue #88: Implemented continuing saving during editing in system editor.
Issue #88: Fixed in continues saving, caused by missing of updating prev checksum after first saving.
notepad -> notebook
Fixes Issue with Newlines between nested lists.

Basically the issue is that when you have a nested list:

    - Item
      - Item 1
      - Item 2

And you save that in Geeknote. When you open it again you get:

    - Item

      - Item 1
      - Item 2

Note the separation between the two.

The reason for this to happen, is that Evernote adds a <p> inside the li that
has a nested <ul> element. The above commit just removes that <p> so that
html2text outputs some correct markdown.

Conflicts:
	geeknote/editor.py
Merge pull request #162 from Laurent-Sarrazin/patch-1

notepad -> notebook
Merge pull request #158 from trilliput/issue88

Issue #88: Implemented continuing saving during editing in system editor...
Merge pull request #157 from glittershark/master

Specify that python2 (not python3) is required
Update README.md
Merge branch 'master' into newline-list

* master:
  Update README.md
  notepad -> notebook
  Issue #88: Fixed in continues saving, caused by missing of updating prev checksum after first saving.
  Issue #88: Implemented continuing saving during editing in system editor.
  Specify that python2 (not python3) is required

Conflicts:
	geeknote/editor.py
Corrects README.md --content is optional on edit
Makes --content optional for create related to issue #148
updates the README to reflect optional content for create.
Merge pull request #165 from MarioRicalde/newline-list

Fixes Issue with Newlines between nested lists.
Merge pull request #167 from MarioRicalde/doc-edit-corrections

Corrects README.md --content is optional on edit
Merge pull request #168 from MarioRicalde/optional-content

Makes --content optional for create related to issue #148
Update editor.py

Close #166