CB-5326 added info regarding FirefoxOS geolocation permission
CB-5333 [BlackBerry10] Update platform guide for bbid signing keys
CB-5245 [BlackBerry10] Update platform guide for automatic device detection
CB-5124 - Remove splashscreen config.xml values from iOS Configuration Docs, move to plugin docs
CB-5361 iOS doc use of force_load linker flag

-use force_load instead of all_load when linking cordova lib
CB-5361 iOS doc use of force_load linker flag

-fix up upgrade guide too
tightened up & sample recursive grep commands
removed a few useless embedded Xrefs