Standardized text in gear.json

Added "Confers no benefit." if missing.
Added "(Month) 2014 Subscriber Item." if missing.
Rearranged some Mystery Item notes from "(Description). (Month) 2014
Subscriber Item. Confers no benefit." to "(Description). Confers no
benefit. (Month) 2014 Subscriber Item."
- All Special Event accessory notes are written in this order.
Changed "October 2014 Subscriber Outfit" to "October 2014 Subscriber
Item".
- All other preexisting Mystery Item strings read "Item".
Changed "Adds # points to (Stat)" in some Special Event equipment to
"Increases (Stat) by #"
- All other equipment reads "Increases (Stat) by #."
Changed "Confers no stat bonus." to "Confers no benefit." in some
Special Event accessories.
- All other items read "Confers no benefit."
Moved "Limited Edition 2013 Winter Gear." to end of string.
- All other Limited Edition tags are at the end.
Changed and capitalized "Special edition convention armor." to "Special
Edition Convention Item."
- Armor is a type of equipment.
Merge pull request #372 from ShilohT/gear

Standardization of locales/en/gear.json