Updated the NEWS

NEWS

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+Changes for 4.2.2
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+- 'IRIGB' reading changed to 'TIME-0': latency from start of second to first cycle.
+- Minimum 'TIME-0' (formerly IRIGB) is decreased to 1 usec when using LPTC.
+- Fixed: MEDM controls are now generated using lowercase site names.
+- Average cycle time EPICS variable corrected for fast models.
+
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 Changes for 4.2.1
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@@ -11,6 +19,7 @@ Changes for 4.2.1
 - gpstime driver updated to work with and report data from LIGO PCIe timing cards.
 - Fixed issue where 18AI32SSC1M was going into 16-bit mode (issue #261)
 - Maximum binary IO card increased to support 4-part 64 I/O cards.
+
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 Changes for 4.2
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