More casing fixes

And another set of smaller fixes follow:

Umbraco > Members
Could not load control: '/umbraco/Members/MemberSearch.ascx
replace Members/MemberSearch.ascx with members/MemberSearch.ascx

System.Web.HttpException
The resource cannot be found.
Details: Requested URL: /umbraco/settings/editMediaType.aspx
Replace settings/editMediaType.aspx with settings/EditMediaType.aspx

System.Web.HttpException
The resource cannot be found.
Details: Requested URL: /umbraco/members/editMemberType.aspx
Replace members/editMemberType.aspx with members/EditMemberType.aspx

Umbraco > Member Group > Save
[editMemberGroupSaved] key is not not config/lang/en.xml
Deferred for now.

System.Web.HttpException
The resource cannot be found.
Details: Requested URL: /umbraco/
Replace settings/editDictionaryItem.aspx with settings/EditDictionaryItem.aspx

System.Web.HttpException
The resource cannot be found.
Details: Requested URL: /umbraco/settings/stylesheet/editStylesheet.aspx
Replace stylesheet/editStylesheet.aspx with stylesheet/editstylesheet.aspx

System.Web.HttpException
The resource cannot be found.
Details: Requested URL: /umbraco/images/developer/userControlIcon.png
Replace developer/userControlIcon.png with developer/usercontrolIcon.png

System.Web.HttpException
The resource cannot be found.
Details: Requested URL: /umbraco/users/editUser.aspx
Replace users/editUser.aspx with users/editUser.aspx