I think Buhallin is right on this as it currently stands, and I agree that it is odd and needs clarification.
Bomb tokens are not defined as "obstacles" and therefore do not impede a boost or barrel roll action. Since boost and barrel roll are not maneuvers, they do not trigger the detonation condition for Proximity Mines, which specifically states "When a ship executes a maneuver…". So if a ship boosts onto a Prox mine, it will not trigger the detonation until next turn, and only if it's movement template overlaps the token. In addition, if another ship moves through or overlaps the token first, it will trigger the detonation and take the damage before the ship that is already sitting on it. This could be a ship with a higher pilot skill on the same turn, or a lower pilot skill on the subsequent turn.
The really frustrating part of addressing a question like this is that you have to look at FIVE different sources to get an answer - the core rulebook, the Boost Action reference card, the Bomb Tokens reference card, the Proximity Mines upgrade card, and the Slave 1 expansion pack rulesheet. Add the FAQ in as well, to be sure there is nothing that contradicts the others. I think FFG could do a better job of having all the information you need in one place, rather than scattering it out and making it more difficult to find answers to intricate questions.
They are only into wave 2, and all those elements came out in wave 2, AFTER the rulebook. I would guess future versions of the rulebook will have everything included.
Even in Wave 1 there was information that was not included in the rulebook, and you need look no further than the Ion Token card to see it. The information on that card was NOT included in the rulebook, probably because the Y-Wing was not part of the core set. So you had to have three different sources to put the picture together. Now with wave 2 it is up to about seven different sources to get the full picture - Core rulebook, Ion token card, Bomb token card, Boost Action card, Falcon insert sheet, Slave insert sheet, and of course the cards themselves.
So far with FFG games I have never seen the original rulebook reissued to contain information from subsequent expansions. They always use the FAQ/Errata document to deal with changes and clarifications to the core ruleset, and additional rules and mechanics that are introduced into a game are always issued with insert sheets and/or cards in the expansions. I have NEVER seen a rewrite of the original rules. I really don't expect that to change, as much as I wish it would.
A digital version of a "codex" would be appreciated, but since it has not happened with such long-standing titles as A Game of Thrones LCG or the Lord of the Rings LCG (or any other FFG game to my knowledge), I won't be holding my breath.