* movie recording: fixed bug when emulator allowed recording commands outside the range of FM2 specs (#615)

* movie recording: added "Insert coin" command
* updated docs accordingly

[[Split portion of a mixed commit.]]

FM2.html

@@ -143,6 +143,7 @@
 		<li>2 = Hard Reset (Power)</li>
 		<li>4 = FDS Disk Insert</li>
 		<li>8 = FDS Disk Select</li>
+		<li>16 = VS Insert Coin</li>
 	</ul>
 	<p>The format of port0, port1, port2 depends on which types of devices were attached.</p>
 	<h4>SI_GAMEPAD</h4>
@@ -192,6 +193,7 @@
 		<li>bit 1 = Hard Reset (Power)</li>
 		<li>bit 2 = FDS Disk Insert</li>
 		<li>bit 3 = FDS Disk Select</li>
+		<li>bit 4 = VS Insert Coin</li>
 	</ul>
 	<p>The remaining bytes in the record depend on which types of devices are attached to port0 and port1.</p>
 	<h4>SI_GAMEPAD</h4>

help/fm2.html

@@ -174,6 +174,7 @@
 <li>2 = Hard Reset (Power)</li>
 <li>4 = FDS Disk Insert</li>
 <li>8 = FDS Disk Select</li>
+<li>16 = VS Insert Coin</li>
 </ul>
 <p><br/></p>
 <p>The format of port0, port1, port2 depends on which types of devices were attached.</p>
@@ -217,6 +218,7 @@
 <li>bit 1 = Hard Reset (Power)</li>
 <li>bit 2 = FDS Disk Insert</li>
 <li>bit 3 = FDS Disk Select</li>
+<li>bit 4 = VS Insert Coin</li>
 </ul>
 <p><br/></p>
 <p>The remaining bytes in the record depend on which types of devices are attached to port0 and port1.</p>