I love those people who scream that their childhood was ruined. They have to realize that the canon has far reached the original trilogy. Books, games, and comics were all, I can assume, referenced for the new movies. Wookieepedia even makes reference to the 'crosssaber' in the main lightsaber article. It seems that it has made an appearance in three different places of the Star Wars canon. That is what people need to realize. In the Star Wars universe there is no set standards for lightsaber building. It is to the discretion of the wielder. Making each lightsaber as unique as its master.
And I also find it funny that people are up in arms about a black storm trooper. We have no idea why he is in the suit. For all we know he could have been in disguise. And, some of the more knowledgeable fan boi's can correct me, but I believe I read some where that with the dwindling numbers of Clone troopers being lost due to war the Empire started to recruit young men for employment. As yes. Here:
"By the time the Galactic Civil War began in earnest, Jango Fett's clones were heavily supplanted by clones based on a variety of templates around 9 BBY,[13] followed shortly after by enlisted Humans.[19] Thus, the Fett clones were ironically reduced to a minority status after years of virtually filling the stormtrooper ranks in its entirety. According to a stormtrooper's entry log in the 501st Journal, none of the Fett clones were ever truly able to come to terms with serving alongside recruits and different clones, all of whom were disdainfully dubbed as the "new guys."[13] Commander Cody, a first generation clone of Jango Fett and a veteran of the Clone Wars, found stormtrooper recruits to be absolutely intolerable. Due to the significant decrease in the Imperial Military's operational effectiveness and his own feelings of nostalgia over the Republic's "army of one man," Cody viewed enlisted troopers as incompetent idiots, all of whom he would have gladly sacrificed for just one real clone trooper.[19]
Despite the influx of new troopers from various sources, the ranks remained dominated by Human males, thus reflecting the New Order's Human High Culture. By 0 BBY, roughly one-third of the stormtroopers were clones based on the Fett template, while recruits steadily became the majority within the Stormtrooper Corps.[20] Service in the Stormtrooper Corps was open to both Human men and women, but female stormtroopers were an extremely rare sight under Palpatine's reign and on average there were never more than three female stormtroopers within a whole legion.[1].[21] In spite of this disparity, some female troopers served in elite units, such as the Coruscant Guard.[22]"
And I don't know why everyone is getting so crazy over this guy. The same thing happened in Return of the Jedi. Vader was in a black suit and voiced by James Earl Jones (a black actor). Then by the end of Jedi he has his mask removed and he's a 'crusty old white man.' And to leave you with some final thoughts here is an excerpt from Chasing Amy.

Ahhh. 'Whats a Nubian?'