Adding RevoVoron Support (#735)

* Revo Voron Added

by request, adding Revo Voron

* Fixed stl error on revo voron front

* added REVO_VORON and removed slice announcement

Its been a year, I don't need to keep the slice announcement in there

printer_mods/Badnoob/AB-BN/Readme.md

@@ -70,6 +70,7 @@ The aim was done empirically over many iterations.  If the nozzle sticks out 1.7
 ![Stickout shown on Rapido](RapidoStickout.png)
 
 ### CHANGE Log
+Added support for REVO Voron
 
 Added support for Phaetus Rapido hotend
 
@@ -137,7 +138,11 @@ Everyone will need:
 
   ##### Depending on your hotend you will need:
   
-  ##### E3D REVO
+    ##### E3D REVO Voron
+* AB-BN-30_Hotend-E3D_REVO-voron-front.stl
+* AB-BN-30_Hotend-E3D_REVO-voron-back.stl
+
+  ##### E3D REVO Micro
 * AB-BN-30_Hotend-E3D_REVO-front.stl
 * AB-BN-30_Hotend-E3D_REVO-back.stl
 
@@ -165,9 +170,6 @@ Everyone will need:
 * AB-BN-30_Hotend-Dragon-front.stl
 * AB-BN-28_Hotend-Dragon-back.stl
 
-  ##### Mosquito (high flow and regular):
-**ANNOUNCEMENT**
- I no longer support the hotends from Slice Engineering.  I find their business practices to be inconsistent with my philosophy.  It makes no sense for me to put time and effort into designing a toolhead so that they can get a better price for their overreaching patent claims.  My designs are all open source.  Slice is free to take them and adapt them their own damn selves, but I'm not lifting another finger to help them.
  
 
 # Assembly: