Shield mastery, world boss shields and meta gem balance

• Tanks: a Barbarian in the Protection branch and a Lightbringer in the Repentance branch with a one-handed weapon and a shield get Health +5% — in dungeons, raids, expeditions and the world (not in PvP). Under the paper doll, the «Shield mastery» line shows ✓ or what is in the way. A staff, two-hander, tome or orb can still be worn — just without this bonus. Together with full plate 8/8 — Health +15.5%. • Meta gems: Stoneskin — every 4th hit against you is weakened by 25% (was 30%); Blood Harvest — hits on a target below 35% Health deal +30% damage (was: below 30% — +12%); Thunder Discharge — spells hitting three or more targets deal +30% (was 10%). • Meta gems, new effects: Nexus Flow — every 3rd spell in a battle deals 20% more damage (instead of crystals); Spring — every 2nd heal in a battle is 20% stronger (instead of a crystal); Pack — every 3rd turn of yours, a shield worth 8% of Health on the most wounded party member (instead of a once-per-battle shield). Dungeons, raids, expeditions and the world only. • Equip: if the server doesn't accept an item (for example, on a bad connection the Titan's Grip talent hasn't arrived yet), it goes straight back to your bag and the game says why — the item no longer shows up in two places. • Honing recipes: tips, help and articles now point to the “Buy the recipe” button in the recipe book (Professions → Enchanting). • World bosses: Kazzagar now drops the epic shield “Aegis of the Hellish Rift”, Azurex — “Bulwark of the Azure Warden”. • Flawless victories now also count in dungeon and raid fights: what matters is that your hero loses no Health in that fight, even if they entered it wounded. The same goes for the pass tasks “Flawless”, “Flawless Duelist” and “Duel Master”.