Fix bugs, memory leaks and small fixes

vm/vm-lines.c

@@ -32,6 +32,7 @@ void printlns(LINE* lns, FILE* stream) {
 void freeln(LINE* ln) {
 	for(int i = 0; i < ln->count; i++)
 		free(ln->tokens[i]);
+	free(ln->tokens);
 	free(ln);
 }
 
@@ -42,6 +43,11 @@ void freelns(LINE* lns) {
 		freelns(next);
 }
 
+void freelnblk(LINEBLOCK* blk) {
+	freelns(blk->head);
+	free(blk);
+}
+
 LINEBLOCK* mklnblk(LINE* start) {
 	LINEBLOCK* blk = (LINEBLOCK*)malloc(sizeof(LINEBLOCK));
 	blk->head = start;

vm/vm-lines.h

@@ -29,6 +29,7 @@ void printlns(LINE* lns, FILE* stream);
 // Line freeing
 void freeln(LINE* ln);
 void freelns(LINE* lns);
+void freelnblk(LINEBLOCK* blk);
 
 // Line block manipulation
 LINEBLOCK* mklnblk(LINE* start);