gotwebd: guard against missig folder and file parameter in BLOB and BLAME ok stsp

gotwebd: retire max_repos setting Unlike max_repos_display which limits the number of items per page, max_repos is an hard-limit on the number of repos gotwebd would process. "kill it with fire" tracey@ about the idea ok stsp

gotwebd: add knob for the number of tags and commits in the summary page ok jamsek

gotwebd: remove PAGE handling The page querystring parameter is long gone and currently unused. It was replaced mith the "more" buttons in all the views, except INDEX that uses `index_page'. ok jamsek

gotwebd: use nitems() instead of ACTIONS__MAX I feel safer by using the explicit size of the table rather than an hypothetical maximum value given by the enum. Mostly because in the past I edited a table and forgot to remove the corresponding enum value. ok stsp@

drop unnecessary zeroing after calloc()

gotwebd: use 'more' for the tag listing too prodded by stsp and jamsek; ok stsp@

gotwebd: render less tags in the summary page suggested / ok stsp

gotwebd: render READMEs in the tree view ok tracey@

gotwebd: add patch action to serve diffs in plain text ok tracey@

refactor gotweb_load_got_path; no functional change ok tracey@

remove the gotwebd repository cache It only had 4 slots so was never quite useful, and sharing of sock->pack_fds across cached repositories seems problematic. with help from + ok op@

whitespace fix

gotwebd: get rid of proc.[ch] proc.c really shines when there's a network of different types of processes, potentially with a various number of instances each, that needs to exchange messages. Gotwebd instead has a much simpler design, and using proc.c causes more overhead (/headaches) than it solves. So, this attempts to provide the same functionalities but with a much simpler implementation that fits gotwebd better. ok stsp@

gotwebd: improve gotwebd_assign_querystring() This prevents the issues that we just hit with forgetting to remove PREVID: instead of relying on the enum value to yield the size of a table, use nitems(). Also, quit as soon as the matching key was found, no need to iterate further. ok stsp@