More redirects and some API tweaks

devices/pc/machine/5160/ega/256kb/machine.md

@@ -2,6 +2,8 @@
 layout: page
 title: "IBM PC XT (Model 5160, 256Kb, 10Mb Drive) with EGA Display"
 permalink: /devices/pc/machine/5160/ega/256kb/
+redirect_from:
+  - /configs/pc/machines/5160/ega/256kb/
 machines:
   - type: pc
     id: ibm5160

devices/pc/machine/5160/ega/640kb/machine.md

@@ -2,6 +2,8 @@
 layout: page
 title: "IBM PC XT (Model 5160, 640Kb, 10Mb Drive) with EGA Display"
 permalink: /devices/pc/machine/5160/ega/640kb/
+redirect_from:
+  - /configs/pc/machines/5160/ega/640kb/
 machines:
   - type: pc
     id: ibm5160

devices/pc/machine/5160/mda/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: IBM PC Machines (Model 5160) with Monochrome (MDA) Display
 permalink: /devices/pc/machine/5160/mda/
+redirect_from:
+  - /configs/pc/machines/5160/mda/
 ---
 
 IBM PC XT with Monochrome (MDA) Display

devices/pc/machine/5170/ega/1152kb/rev1/machine.md

@@ -2,6 +2,8 @@
 layout: page
 title: "IBM PC AT (Model 5170, 1152Kb) with EGA Display and 20Mb Hard Disk"
 permalink: /devices/pc/machine/5170/ega/1152kb/rev1/
+redirect_from:
+  - /configs/pc/machines/5170/ega/1152kb/rev1/
 machines:
   - type: pc
     id: ibm5170

devices/pc/machine/5170/ega/640kb/rev1/machine.md

@@ -2,6 +2,9 @@
 layout: page
 title: "IBM PC AT (Model 5170, 640Kb) with EGA Display"
 permalink: /devices/pc/machine/5170/ega/640kb/rev1/
+redirect_from:
+  - /configs/pc/machines/5170/ega/640kb/
+  - /configs/pc/machines/5170/ega/640kb/rev1/
 machines:
   - type: pc
     id: ibm5170

devices/pc/machine/5170/ega/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: "IBM PC AT (Model 5170) with Enhanced Color Display"
 permalink: /devices/pc/machine/5170/ega/
+redirect_from:
+  - /configs/pc/machines/5170/ega/
 ---
 
 IBM PC AT with Enhanced Color Graphics (EGA) Display