add respect_exportok flag, defaulting to off allows to hide repositories if they have the magic git-daemon-export-ok file ok op@ tracey@ stsp@

send a newline first if erroring out in plaintext mode otherwise, the webserver might complain: 'upstream sent invalid header: "gotwebd\x20..." while reading response header from upstream' ok stsp@

gotwebd: drop needless NULL check We can assume that the querystring was initialized when we reach gotweb_render_header. ok tracey@

gotwebd: percent-encode generated URLs This adds a new helper function `gotweb_link' that outputs an HTML link with the parameter correctly escaped. ok stsp@

gotwebd: add missing closing for div tags_content reported by the W3C validator.

gotwebd: fix page title due to an error in the order of the arguments to fcgi_printf that I've introduced last time I touched gotweb_render_header the title is now "/" (or SCRIPT_NAME) and one assets (the safari pinned tab svg) is a funny URL :)

gotwebd: shrink struct server keeping GOTWEBD_REPO_CACHESIZE * sizeof(struct cache_repo) inside the struct server makes it too large for imsg on some platforms (linux at least.) Instead, store a pointer and allocate the array when it's received on the child processes. ok stsp@

gotwebd: percent-decode the received query string ok stsp@

gotwebd: free age and reflist in gotweb_render_branches ok stsp@

gotwebd: free scandir(3) result in gotweb_render_index ok stsp@

gotwebd: free qs->headref before overwriting it

gotwebd: fix leak in gotweb_init_querystring in error path if strdup fails we fail to free the querystring Found by clang' scan-build.

gotwebd: add missing fcgi_printf return check dead store found by clang' scan-build.

gotwebd: fix assets URLs In 95a4a5a1e8d0952ee0d2523dc31df7170d80e0b3 I forgot to fix the links for the favicons and the web manifest.

fix regression in gotweb_free_repo_tag(): free(...): modified chunk-pointer problem introduced in commit 625e5896fc9ecf87ccfc92ad2a65cd3be58f73c0