[desktop] UTF8 decode byte strings before printing

This annoying bug affects unit tests. Since we're just printing out random byte
strings from random HTTP endpoints, there is no guarantee that we're getting
text. And we often don't, when we do file I/O with WebHDFS. This causes us to
log non-UTF8 safe stuff, which makes nosetest put non-UTF8 data into the XML
report file, which means that Jenkins can't parse it.
[fb] Support upload of tar.gz archive
HUE-2486 [beeswax] Fix saving result to a new Hive table and to a HDFS directory

Hive query editor allows users to save Hive query results to HDFS or a new Hive table.
However, when users have multiple query statements in the Hive query editor, the editor
wraps all the queries inserts them into the 'CREATE TABLE AS SELECT ...' or
'INSERT OVERWRITE DIRECTORY SELECT ...' statement to save the query, which causes syntax error.

The fix takes only the last SELECT statement being executed and saves it,
and it also provides an error message that only SELECT clause can be saved.
HUE-2471 [beeswax] Fix display ellipsis on fields longer than 20 characters

Removed ellipsis on shorter fields
HUE-2366 [jb] Message explaining when no Resource Manager is available
HUE-2472 [impala] Hide Show more results in certain cases

Useful for count operations or limited resultsets
[hbase] Tell user when HBase kerberos principal is missing from hbase-site.xml in secure mode
[core] Add wsgi.py script to simplify deployment to Apache
HUE-2479 [fb] Cancel moving a file with drag and drop

Implemented like Dropbox: if you try to copy it over itself it displays a warning
HUE-2152 [pig] Credentials support for HCat in editor

Automatically add a 'hcat' credential when using HCat and a secure
cluster.
"[fb] Make archive upload case insensitive"
HUE-2102 [oozie] Workflow with credentials can't be used with Coordinator
[beeswax] Replace tabs with spaces
[beeswax] Cleanup the table properties test
[beeswax] Clean up test_partition_values
[beeswax] Add a test case for ',' and ':' in a partition key comments
[beeswax] Handle case where a PartitionKey includes extra ','s or ':'s
HUE-2391 [beeswax] install example exception handling correction
[oozie] Support exporting workflows with credentials
HUE-2484 [beeswax] Configure support for Hive Server2 LDAP authentication

This makes sure we use plain SASL auth in Hive when we have

<property>
  <name>hive.server2.authentication</name>
  <value>LDAP</value>
</property