Add (Bioconductor, R) version mapping for Bioconductor v1.0-v1.5

Source: https://github.com/Bioconductor/bioconductor.org/blob/master/content/about/release-announcements.md

Fixes Bioconductor#96

config.yaml

@@ -121,6 +121,12 @@ data_sources:
 # CHANGE THIS when it becomes apparent which future versions of BioC will
 # work with which versions of R:
 r_ver_for_bioc_ver:
+  "1.0": "1.5"
+  "1.1": "1.6"
+  "1.2": "1.7"
+  "1.3": "1.8"
+  "1.4": "1.9"
+  "1.5": "2.0"
   "1.6": "2.1"
   "1.7": "2.2"
   "1.8": "2.3"