#2 support for namespaces

[weltraumkuh]

Hi,

i think ekhtml should support tagnames with : in it. It
is useful for tags with namespaces - which are in use
for example in Java Server Faces.

Example:
<h:inputText >

The solution is easy just change
static EKHTML_CHARMAP_TYPE valid_tagname(char in){
if(in == '-' || in == '.' || isdigit(in) ||
isalpha(in) )

to
static EKHTML_CHARMAP_TYPE valid_tagname(char in){
if(in == '-' || in == '.' || isdigit(in) ||
isalpha(in) || in == ':')

in ekhtml_mktables.c