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log4j - use logger instead of category

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Do not use 'category'.

In log4j 1.2, the Category class has marked as being deprecated and has been replaced by the Logger class. I am using log4j-1.2.14.jar and category didn't work for me.

Example:
<logger name="com.test.pkg1"><level value="INFO"/></logger>
<logger name="com.test.pkg2"><level value="INFO"/></logger>

Was:
<category name="com.test.pkg1"><priority value="INFO"/></category>
<category name="com.test.pkg2"><priority value="INFO"/></category>
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