add internal item names to constants

[howardchung]

"item_arcane_ring" "Arcane Ring"
"item_armlet" "Armlet"
"item_assault" "Assault Cuirass"
"item_basher" "Skull Basher"
"item_belt_of_strength" "Belt of Strength"
"item_bfury" "Battle Fury"
"item_black_king_bar" "Black King Bar"
"item_blade_mail" "Blade Mail"
"item_blades_of_attack" "Blades of Attack"
"item_blade_of_alacrity" "Blade of Alacrity"
"item_blink" "Blink Dagger"
"item_bloodstone" "Bloodstone"
"item_boots" "Boots of Speed"
"item_boots_of_elves" "Boots of Elvenskin"
"item_bottle" "Bottle"
"item_bracer" "Bracer"
"item_branches" "Iron Branch"
"item_broadsword" "Broadsword"
"item_buckler" "Buckler"
"item_butterfly" "Butterfly"
"item_chainmail" "Chainmail"
"item_circlet" "Circlet"
"item_clarity" "Clarity"
"item_claymore" "Claymore"
"item_cloak" "Cloak"
"item_courier" "Animal Courier"
"item_flying_courier" "Flying Courier"
"item_cyclone" "Eul's Scepter of Divinity"
"item_dagon" "Dagon"
"item_demon_edge" "Demon Edge"
"item_desolator" "Desolator"
"item_diffusal_blade" "Diffusal Blade"
"item_diffusal_blade_2" "Diffusal Blade"
"item_dust" "Dust of Appearance"
"item_eagle" "Eaglesong"
"item_energy_booster" "Energy Booster"
"item_ethereal_blade" "Ethereal Blade"
"item_flask" "Healing Salve"
"item_force_staff" "Force Staff"
"item_gauntlets" "Gauntlets of Strength"
"item_gem" "Gem of True Sight"
"item_ghost" "Ghost Scepter"
"item_gloves" "Gloves of Haste"
"item_greater_crit" "Daedalus"
"item_hand_of_midas" "Hand of Midas"
"item_headdress" "Headdress"
"item_heart" "Heart of Tarrasque"
"item_helm_of_iron_will" "Helm of Iron Will"
"item_helm_of_the_dominator" "Helm of the Dominator"
"item_hood_of_defiance" "Hood of Defiance"
"item_hyperstone" "Hyperstone"
"item_invis_sword" "Shadow Blade"
"item_javelin" "Javelin"
"item_lesser_crit" "Crystalys"
"item_lifesteal" "Morbid Mask"
"item_sphere" "Linken's Sphere"
"item_maelstrom" "Maelstrom"
"item_magic_stick" "Magic Stick"
"item_magic_wand" "Magic Wand"
"item_manta" "Manta Style"
"item_mantle" "Mantle of Intelligence"
"item_mask_of_madness" "Mask of Madness"
"item_mekansm" "Mekansm"
"item_mithril_hammer" "Mithril Hammer"
"item_mjollnir" "Mjollnir"
"item_monkey_king_bar" "Monkey King Bar"
"item_mystic_staff" "Mystic Staff"
"item_necronomicon" "Necronomicon"
"item_necronomicon_2" "Necronomicon"
"item_necronomicon_3" "Necronomicon"
"item_null_talisman" "Null Talisman"
"item_oblivion_staff" "Oblivion Staff"
"item_ogre_axe" "Ogre Club"
"item_orchid" "Orchid Malevolence"
"item_pers" "Perseverance"
"item_phase_boots" "Phase Boots"
"item_pipe" "Pipe of Insight"
"item_platemail" "Platemail"
"item_point_booster" "Point Booster"
"item_poor_mans_shield" "Poor Man's Shield"
"item_power_treads" "Power Treads"
"item_power_treads_str" "Strength"
"item_power_treads_agi" "Agility"
"item_power_treads_int" "Intelligence"
"item_quarterstaff" "Quarterstaff"
"item_quelling_blade" "Quelling Blade"
"item_radiance" "Radiance"
"item_rapier" "Divine Rapier"
"item_reaver" "Reaver"
"item_refresher" "Refresher Orb"
"item_aegis" "Aegis of the Immortal"
"item_cheese" "Cheese"
"item_relic" "Sacred Relic"
"item_ring_of_basilius" "Ring of Basilius"
"item_ring_of_health" "Ring of Health"
"item_ring_of_protection" "Ring of Protection"
"item_ring_of_regen" "Ring of Regen"
"item_robe" "Robe of the Magi"
"item_sange" "Sange"
"item_sange_and_yasha" "Sange and Yasha"
"item_satanic" "Satanic"
"item_sheepstick" "Scythe of Vyse"
"item_shivas_guard" "Shiva's Guard"
"item_skadi" "Eye of Skadi"
"item_slippers" "Slippers of Agility"
"item_sobi_mask" "Sage's Mask"
"item_soul_booster" "Soul Booster"
"item_soul_ring" "Soul Ring"
"item_staff_of_wizardry" "Staff of Wizardry"
"item_stout_shield" "Stout Shield"
"item_talisman_of_evasion" "Talisman of Evasion"
"item_tango" "Tango"
"item_tpscroll" "Town Portal Scroll"
"item_travel_boots" "Boots of Travel"
"item_ultimate_orb" "Ultimate Orb"
"item_ultimate_scepter" "Aghanim's Scepter"
"item_urn_of_shadows" "Urn of Shadows"
"item_recipe_urn_of_shadows" "Urn of Shadows Recipe"
"item_vanguard" "Vanguard"
"item_vitality_booster" "Vitality Booster"
"item_vladmir" "Vladmir's Offering"
"item_void_stone" "Void Stone"
"item_ward_observer" "Observer Ward"
"item_ward_sentry" "Sentry Ward"
"item_wraith_band" "Wraith Band"
"item_yasha" "Yasha"
"item_arcane_boots" "Arcane Boots"
"item_orb_of_venom" "Orb of Venom"
"item_ancient_janggo" "Drum of Endurance"
"item_medallion_of_courage" "Medallion of Courage"
"item_smoke_of_deceit" "Smoke of Deceit"
"item_veil_of_discord" "Veil of Discord"

[howardchung]

Turns out the pre-defined names in the item feed are just the internal names without "item_"