Django-djaken

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- FIXED: correct compatible versions of Django to <2.0.

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- FIXED: reST markup fixed in 'README.rst'.

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- CSS improvements for 'view_note'; add support for tables,
add scrollbars to literal blocks and code blocks.

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- FIXED: Exception 'DoesNotExist:Image matching query does not exist' after ain 'Image Attach' save_note.
- FIXED: 'Attach Image' workflow now has proper state control (buttons).
The note models' non-DB-members were persistent, so a reset is needed in __init__.
- ENHANCEMENT: Only attach image during a save triggered from the image preview save button.

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- Replace Markdown with reStructuredText.
- Move inline images to seperate model (DB) field,
thus avoiding search and markup processing on bulky image data.
It also takes away the encoded image data from the markup text.
- GUI: several improvements (HTML templates and CSS).
- GUI: Edit Note; change "Save and Close" button to icon and have all three
save and close permutations at top and bottom of note.
- CODING: Change 'Generic Views' back to regular/full Django views.
- FIXED: Page reload after going back to unlock encrypted note re-submits
encryption key (password).
- Disable browser caching as much as possible.

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* FIXED: added missing initial migrations