Add mentions and definitions for bits
Fix one typo (thanks @harding)
Avoid pushing for bits in "bitcoin" and "BTC" definitions
Avoid autocrossref for bits (thanks @harding)
Add mention for uBTC (thanks @luke-jr)
Drop post-decimal delimiter (thanks @luke-jr)
Display uBTC and bits on a single row
Revert another mention for "bits"
Merge pull request #636 from bitcoin/bits

Add mentions and definitions for bits
Add Ukrainian (uk) translations
Merge pull request #634 from bitcoin/uk

Add uk (Ukrainian) translations
Dev Docs: Add P2P Messages That Request Or Reply With Data

Adds to the devel reference page detailed documentation on the following
messages: block, getblocks, getdata, getheaders, headers, inv, mempool,
merkleblock, notfound, and tx.

Adds to the devel examples page an example of requesting and parsing a
merkleblock message.

Adds to the devel docs overview pages links to the above two new
P2P sections.

Tweaks the autocrossref plugin ignore pattern to not crossref in the
middle of a GIF image name; this allows the inclusion of animated GIFs.
Drop unused CSS file
Drop previous workaround against caching scripts
Update ar translations
Update validation score name in the layout and CSS
Update transparency scores for hardware wallets
Avoid mentioning that the app is open-source in the "New app" score
Format "protocol versions" table content to improve readability
Dev Docs: Tweak Revised Protocol Versions Table Style