Bumping version to v0.7
Fix mem usage for scanners.
bytes_skipped_counter_
Fix error in path in buildall clean.
buildall.sh improvements: move 'set -e' higher, kill processes that are accessing postgres before creating metastore
Replacing ternary conditional operator with Python 2.4-compatible syntax
Default bin/make_release to not use PGO.
Update micro benchmarks.
IMPALA-72: String partition keys should be URL encoded
IMPALA-92: Significant performance difference between LIKE = 'x' AND = 'x'
Added aggregated Scanner Thread measurement.

We now measure
1. total time spent in scanner thread,
2. user time spent in scanner thread,
3. sys time,
4. number of voluntary and involuntary context switch
in scanner thread.

These measurements are reported in the Final Profile report.

      HDFS_SCAN_NODE (id=0):(664ms 96.42%)
        File Formats: SEQUENCE_FILE/SNAPPY_BLOCKED:12
         - BytesRead: 386.78 MB
         - BytesSkipped: 0.00
         - DecompressionTime: 824ms
         - MaterializeTupleTime: 121ms
         - MemoryUsed: 56.41 MB
         - PerDiskReadThroughput: 3.32 GB/sec
         - RowsReturned: 6.00M
         - RowsReturnedRate: 9.04 M/sec
         - ScanRangesComplete: 12
*->      - ScannerThreadInVolutaryContextSwitch: 16
*->      - ScannerThreadSysTime: 10ms
*->      - ScannerThreadTotalTime: 1s838ms
*->      - ScannerThreadUserTime: 1s600ms
*->      - ScannerThreadVolutaryContextSwitch: 41
         - ScannerThreadsReadTime: 113ms
         - TotalReadThroughput: 302.76 MB/sec

Also increase max materialized batchs size to 50 (from 10)
Fix incorrect row batch memory handling for right joins.
Fix race in coordinator when a query fails before Exec() completes.
Impala should retry kinit even if execute fails
Impala binaries are embedding build-time locations of libraries
Revert "IMP-594: Impala binaries are embedding build-time locations of libraries"

This reverts commit 748659845303b9a23ee36fc50f81aee0f1082cb9.
Impala binaries are embedding build-time locations of libraries
Including LD_LIBRARY_PATH in summary of configuration variables
Make BackendClientCache generic and usable for other Thrift servers
Fix build break