Code cleanup of tabs

Our code style lays out that we should not use tabs, however, we seem to have a number of cases where we are. We need to clean up our code.

tundra:java sush$ find . -name *java | xargs grep -c '^I' | grep -v ':0$'
./org/apache/hcatalog/cli/HCatCli.java:5
./org/apache/hcatalog/data/schema/HCatFieldSchema.java:47
./org/apache/hcatalog/data/schema/HCatSchemaUtils.java:1
./org/apache/hcatalog/data/transfer/DataTransferFactory.java:62
./org/apache/hcatalog/data/transfer/EntityBase.java:39
./org/apache/hcatalog/data/transfer/HCatReader.java:54
./org/apache/hcatalog/data/transfer/HCatWriter.java:57
./org/apache/hcatalog/data/transfer/impl/HCatInputFormatReader.java:77
./org/apache/hcatalog/data/transfer/impl/HCatOutputFormatWriter.java:98
./org/apache/hcatalog/data/transfer/ReadEntity.java:65
./org/apache/hcatalog/data/transfer/ReaderContext.java:54
./org/apache/hcatalog/data/transfer/state/DefaultStateProvider.java:18
./org/apache/hcatalog/data/transfer/state/StateProvider.java:4
./org/apache/hcatalog/data/transfer/WriteEntity.java:59
./org/apache/hcatalog/data/transfer/WriterContext.java:33
./org/apache/hcatalog/listener/NotificationListener.java:234
./org/apache/hcatalog/pig/HCatBaseStorer.java:1
./org/apache/hcatalog/pig/HCatStorer.java:1
./org/apache/hcatalog/security/StorageDelegationAuthorizationProvider.java:1
./org/apache/hcatalog/shims/HCatHadoopShims.java:21