Review Board 1.7.22

Support globbing for registering jars in pig script.

Review Request #508 - Created March 14, 2011 and submitted

Daniel Dai
Currently user can not register pig jars with globing.

For example following register script will fail.

    register /etc/jars/*.jar 

It will be great if we can support such globing for registering jars.

Release notes:
We allow globbing in register statement. User can use "*" to denote a globbing, eg:
register key*.jar
register /home/jarpath/key*.jar
register jars/key*.jar

The path can be absolute path or relative path start with working directory.

Note globbing does not further search in classpath as non-globbing case does, eg:
"register key1234.jar" works if key1234.jar in classpath, but not in working directory, however,
"register key*.jar" will not locate key1234.jar in this case.
     [exec] +1 overall.  
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]     +1 tests included.  The patch appears to include 3 new or modified tests.
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler warnings.
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec]     +1 release audit.  The applied patch does not increase the total number of release audit warnings.

Unit test:
    all pass

End-to-end test:
    all pass