Merge pull request #335 from ucum-org/bugfix/missing-ci-liter

Add missing case-insensitive Liter unit

ucum-source.xml

@@ -1545,7 +1545,7 @@ out of scope of &TUCUM;.
 <u:unit id="200020" Code="'" CODE="'" isMetric="no"><name>minute</name><printSymbol>'</printSymbol><property>plane angle</property><value Unit="deg/60" UNIT="DEG/60" value="1">1</value></u:unit>
 <u:unit id="200030" Code="''" CODE="''" isMetric="no"><name>second</name><printSymbol>''</printSymbol><property>plane angle</property><value Unit="'/60" UNIT="'/60" value="1">1</value></u:unit>
 <u:unit id="200050" Code="l" CODE="L" isMetric="yes"><name>liter</name><printSymbol>l</printSymbol><property>volume</property><value Unit="dm3" UNIT="DM3" value="1">1</value></u:unit>
-<u:unit id="200060" Code="L" isMetric="yes"><name>liter</name><printSymbol>L</printSymbol><property>volume</property><value Unit="l"  value="1">1</value></u:unit>
+<u:unit id="200060" Code="L" CODE="L" isMetric="yes"><name>liter</name><printSymbol>L</printSymbol><property>volume</property><value Unit="l" UNIT="L" value="1">1</value></u:unit>
 <u:unit id="200070" Code="ar" CODE="AR" isMetric="yes"><name>are</name><printSymbol>a</printSymbol><property>area</property><value Unit="m2" UNIT="M2" value="100">100</value></u:unit>
 <u:unit id="200090" Code="min" CODE="MIN" isMetric="no"><name>minute</name><printSymbol>min</printSymbol><property>time</property><value Unit="s" UNIT="S" value="60">60</value></u:unit>
 <u:unit id="200100" Code="h" CODE="HR" isMetric="no"><name>hour</name><printSymbol>h</printSymbol><property>time</property><value Unit="min" UNIT="MIN" value="60">60</value></u:unit>