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Update FAQ_DEV.

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`@@ -26,6 +26,7 @@`
`26`	`26`	`10) What is elog()?`
`27`	`27`	`11) What is configure all about?`
`28`	`28`	`12) How do I add a new port?`
	`29`	`+ 13) What is CommandCounterIncrement()?`
`29`	`30`	`_________________________________________________________________`
`30`	`31`
`31`	`32`	`1) What tools are available for developers?`
`@@ -414,3 +415,15 @@ c-mode)`
`414`	`415`	`src/include/storage/s_lock.h for your CPU. There is also a`
`415`	`416`	`src/makefiles directory for port-specific Makefile handling. There is`
`416`	`417`	`a backend/port directory if you need special files for your OS.`
	`418`	`+`
	`419`	`+ 13) What is CommandCounterIncrement()?`
	`420`	`+`
	`421`	`+ Normally, transactions can not see the rows they modify. This allows`
	`422`	`+ UPDATE foo SET x = x + 1 to work correctly.`
	`423`	`+`
	`424`	`+ However, there are cases where a transactions needs to see rows`
	`425`	`+ affected in previous parts of the transaction. This is accomplished`
	`426`	`+ using a Command Counter. Incrementing the counter allows transactions`
	`427`	`+ to be broken into pieces so each piece can see rows modified by`
	`428`	`+ previous pieces. CommandCounterIncrement() increments the Command`
	`429`	`+ Counter, creating a new piece of the transaction.`

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`@@ -38,6 +38,7 @@ <H1>`
`38`	`38`	`<ahref="#10">10</a>)What is elog()?<BR>`
`39`	`39`	`<ahref="#11">11</a>)What is configure all about?<BR>`
`40`	`40`	`<ahref="#12">12</a>)How do I add a new port?<BR>`
	`41`	`+<ahref="#13">13</a>)What is CommandCounterIncrement()?<BR>`
`41`	`42`	`<BR>`
`42`	`43`	`<HR>`
`43`	`44`
`@@ -481,6 +482,18 @@ <H3><a name="12">12</a>)How do I add a new port?</H3><P>`
`481`	`482`	`There is a<I>backend/port</I> directory if you need special files for`
`482`	`483`	`your OS.<P>`
`483`	`484`
	`485`	`+<H3><aname="13">13</a>)What is CommandCounterIncrement()?</H3><P>`
	`486`	`+`
	`487`	`+Normally, transactions can not see the rows they modify. This allows<CODE>`
	`488`	`+UPDATE foo SET x = x + 1</CODE> to work correctly.`
	`489`	`+<P>`
	`490`	`+`
	`491`	`+However, there are cases where a transactions needs to see rows affected`
	`492`	`+in previous parts of the transaction. This is accomplished using a`
	`493`	`+Command Counter. Incrementing the counter allows transactions to be`
	`494`	`+broken into pieces so each piece can see rows modified by previous`
	`495`	`+pieces.<I>CommandCounterIncrement()</I> increments the Command`
	`496`	`+Counter, creating a new piece of the transaction.<P>`
`484`	`497`
`485`	`498`	`</BODY>`
`486`	`499`	`</HTML>`

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