fixed some links in the Reference/Api/Base/ folder.  File name cases were off.
linked to rest config file docs on our.umbraco.org for now, couldn't find it in the repo
added wiki content from http://our.umbraco.org/wiki/reference/umbraco-base/simple-base-samples/the-restextensionsconfig-file to Documentation/Using-Umbraco/Config-files/BaseRestExtensions/index.md
fixed the link for restExtentions.config in Documentation/Reference/Api/Base/Index.md
fixed typo in the link to 'simple /base example page' in Documentation/Using-Umbraco/Config-files/BaseRestExtensions/index.md
mixed my self up, moving content to the right spot
updated with content from using-umbraco config section
removed ConfigFile.md
Merge pull request #110 from joshatjben/patch-1

fixed some broken links in the Reference/Api/Base/index.md.