POM: use new bsd_2 license, not custom resolver

The license-maven-plugin 1.6 adds BSD-style license templates:
https://jira.codehaus.org/browse/MLICENSE-80

With this fabulous new addition, we can eliminate our custom
license resolver in favor of the stock bsd_2 license.

Author: ctrueden

license/README.txt

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.scijava</groupId>
 		<artifactId>pom-scijava</artifactId>
-		<version>1.119</version>
+		<version>1.123</version>
 	</parent>
 
 	<artifactId>scijava-common</artifactId>
@@ -60,8 +60,7 @@
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>license-maven-plugin</artifactId>
 				<configuration>
-					<licenseName>scijava</licenseName>
-					<licenseResolver>file://${basedir}/license</licenseResolver>
+					<licenseName>bsd_2</licenseName>
 					<organizationName>Board of Regents of the University of
 Wisconsin-Madison, Broad Institute of MIT and Harvard, and Max Planck
 Institute of Molecular Cell Biology and Genetics.</organizationName>