CLEANUP: assorted typo fixes in the code and comments

This is 7th iteration of typo fixes
diff --git a/include/types/server.h b/include/types/server.h
index 1e5e031..48582e6 100644
--- a/include/types/server.h
+++ b/include/types/server.h
@@ -222,7 +222,7 @@
 
 	struct eb_root pendconns;		/* pending connections */
 	struct list actconns;			/* active connections */
-	struct mt_list *idle_conns;		/* sharable idle connections*/
+	struct mt_list *idle_conns;		/* shareable idle connections*/
 	struct mt_list *safe_conns;		/* safe idle connections */
 	struct list *available_conns;           /* Connection in used, but with still new streams available */
 	unsigned int pool_purge_delay;          /* Delay before starting to purge the idle conns pool */
@@ -231,7 +231,7 @@
 	unsigned int curr_idle_nb;              /* Current number of connections in the idle list */
 	unsigned int curr_safe_nb;              /* Current number of connections in the safe list */
 	unsigned int curr_used_conns;           /* Current number of used connections */
-	unsigned int max_used_conns;            /* Max number of used connections (the counter is resetted at each connection purges */
+	unsigned int max_used_conns;            /* Max number of used connections (the counter is reset at each connection purges */
 	unsigned int *curr_idle_thr;            /* Current number of orphan idling connections per thread */
 	int max_reuse;                          /* Max number of requests on a same connection */
 	struct eb32_node idle_node;             /* When to next do cleanup in the idle connections */