common: use relative paths instead of absolute
moved header out into own file
moved footer into own file
index.php: use NNTP_HOST instead of assuming that the newsserver also runs the website
added get_group_link function
renamed common.inc to common.inc.php to prevent apache from providing source
header: use NNTP_HOST
article.php: bugfix, replace \t in headers with spaces to allow reference parsing
article: re-use existing NNTP connection by reading the first data into a buffer
finish transition to get_article_link
add function get_getpart_link to get a (nice) link to getpart.php
article.php bugfix: use correct header in regexp
article.php: use get_getpart_link
common/getpart: added a function to properly parse headers.

Mail <FC.10.09355.8BF89F05@pb1.pair.com> on php.internals included a patchfile with a very long name which the newsserver/the mailprogram split into two parts:
 filename*0="0001-Improve-x86-assembler-implementations-of-add-sub-int.pa";
 filename*1="tch"

The new function reassembles the split headers and allows proper browser output.
article: use split-headers
common: fix insufficient escaping
added a gitignore for local config + editor backup files
made the config local-able by copying config.local-example.inc.php to config.local.inc.php
article: escape attachment filenames
article: escape attachment filenames