I totally forgot about those since you can't get them until 80. I'll add them today, thanks. Minor Glyphs are really straight forward, but I'll also include them.
It is worth noting though on live the Glyph of Lay on Hands only effect how much mana your target gets, not how much mana you get with Divinity. So with both of those Glyphs you only get the base amount of Lay on Hands (900 at 70). Also are you saying that if use LoH on yourself with Divinity, that you get double the mana? I didn't think that was the case, but I'll definitely test it out later.
This is not correct. The +20% is only applied to the target. Cast LoH rank 4 on yourself and you will get two instances of mana return: one of 900, one of 1080.
Nope, when cast on yourself, even as of tonight (3.0.3), Minor Glyph of Lay on Hands returns +40% (with Rank 4, it's 1080+1080). If it was a bug, I would assume they would've changed it by now. Screenshot of it here: