Topic Tree / Notebook per opto

* A place to keep notes and ideas in Firefox (Desktop or Android) and Thunderbird,
* Notes can be styled (wysiwyg editor or html editor), can hold images, tables, links etc.
* Add mind maps to notes
* Full text search
* Copy and paste from webpages
* Backup (not yet on Android) and restore (also restore into Thunderbird, full sync between Thunderbird, Firefox and Firefox for Android is coming)
* Email notes (Thunderbird only) or print notes
* Tree display
* To attach notes to emails: use the addon XNote++ (Thunderbird only)

Work in progress - more to come.
Bugs: please report at: https://github.com/opto/topic-tree-notebook/issues. Please state whether for FF or TB.

New:
v1.2.6: up to TB 104
in v1.2.5:
* Full text search in notes with word stemming for English: 'work' finds both 'work', 'working' etc. Other languages to follow.
* Better scrolling: buttons stay visible when scrolling the tree or the notes.

in v1.1.4:
* filter the tree, search for note titles
* typing first letter of title in tree jumps to next tree element startig with that letter

in v1.1.3:
* reorder notes by drag n drop
* drop text or html, directly onto a note in the tree: add the text/html as child note
* or create it as sibling note if dropped between notes

=> for example, highlight text on a webpage, drag it onto a note in the tree


to come:
* Topic-Tree/Notebook for FF with sync to TB
* Sync between multiple TB/FF installations