Remove MySQL specific code from site generation code

- site-generator is generic, so no changes.
 - removed mysql information from site.cfg.
 - Updated template files to call sqlite queries directly.
 - Renamed the query files - remove sqlite from file names.
 - Deleted MySQL specific template files.

templates/queries-episode.tpl.html

@@ -0,0 +1,51 @@
+<!--% query_episode_maxmin = '
+		WITH episode_maxmin AS (
+			SELECT MAX(id) AS \'latest\', MIN(id) AS \'earliest\', ? AS \'id\' 
+			FROM eps
+			WHERE eps.date <= date(\'now\')
+		),
+		episode_date AS (
+			SELECT eps.date 
+			FROM eps
+			WHERE eps.id = ?
+		),
+		episode_previous AS (
+			SELECT MAX(id) AS \'previous\', ? AS \'id\'
+			FROM eps
+			INNER JOIN episode_date
+			ON eps.date < episode_date.date
+			WHERE eps.id > 1
+		),
+		episode_next AS (
+			SELECT MIN(id) AS \'next\', ? AS \'id\'
+			FROM eps
+			INNER JOIN episode_date
+				ON eps.date > episode_date.date
+			WHERE eps.date <= date(\'now\')
+		),
+		comment_tallies AS (	
+			SELECT 
+				eps_id,
+				COUNT(eps_id) AS eps_tally
+			FROM comments
+			GROUP BY eps_id 
+		)
+		SELECT eps.id, eps.date, eps.title, eps.duration, 
+			   eps.summary, eps.notes, eps.explicit, eps.license, 
+			   eps.tags, eps.version, eps.downloads, eps.valid,
+			   episode_maxmin.latest, episode_maxmin.earliest,
+			   episode_previous.previous, episode_next.next,
+			   hosts.hostid, hosts.host,
+			   miniseries.name AS \'series\', miniseries.id AS \'seriesid\',
+			   miniseries.description AS \'series_description\',
+			   COALESCE (comment_tallies.eps_tally, 0) AS eps_tally 
+		FROM eps
+		INNER JOIN hosts ON eps.hostid = hosts.hostid
+		INNER JOIN miniseries ON eps.series = miniseries.id
+		INNER JOIN episode_maxmin ON eps.id = episode_maxmin.id
+		INNER JOIN episode_previous ON eps.id = episode_previous.id
+		INNER JOIN episode_next ON eps.id = episode_next.id
+		LEFT JOIN comment_tallies ON eps.id = comment_tallies.eps_id
+		WHERE eps.id = ?
+	'
+%-->