collisionRule not showing in "gamerule" usage

In my redstoning world, I was trying to find out how to stop collisions and then I looked up collisionRule, I just added a team but wasn't sure if it was called collisionRule and didn't show up in the usage but when I pressed tab it showed up // The rule "collisionRule" doesn't show up when you see the usage of /scoreboard team option, it shows up /scoreboard teams option <team> <friendlyfire|seeFriendlyInvisibles|nametagVisibility|deathMessageVisibility> <value> but is supposed to show /scoreboard teams option <team> <friendlyfire|seeFriendlyInvisibles|nametagVisibility|deathMessageVisibility|collisionRule> <value>
http://bit.ly/1jlz4Zd