Adds a new Hyphenation method: Soft-hyphens only.
Adds a new toggable option, usable with Algorithm and language
based methods: Trust soft hyphens (if enabled, if soft hyphens
found in word: use them and skip regular method).
Includes:
- Avoid page break between a node and its borders
- Allow building an alternative TOC from document headings
On CRE documents, allows toggling between original TOC and an
alternative TOC with long-press on the "Table of content" menu
item.
Also update the Wikipedia stylesheet to further avoid
page-breaks between images and their caption, so a full
bordered wikipedia thumbnail is always full on a single page.
When hyphenating a word, the existing algorithms enforced a minimal
length of 2 for each word fragments on left or right side.
This adds a widget to allow changing these minimal sizes (from 1 to 10).
It makes no sense to have both, so setting a default removes
the fallback, and setting a fallback removes the default.
Also save hyph_alg to document setting only if it has been
manually chosen, so that later changes to default or fallback
can be used.
For documents without language defined in metadata (.txt, .html),
crengine would fallback to hardcoded English_US_hyphen_(Alan).pdb.
This allows for setting a different one.
This is the remaining gruntwork of #1276. I believe that only leaves networkmgr.lua and filemanagersearch.lua, which will require a little more thought.