Remove FindBoost.cmake
Removing be/src/experiments
Add ASL license to all files
Remove be/src/benchmarks
Added doxygen ("build docs") to backend.
Compatibility changes for Mongoose 3.3
Move thirdparty library versions to environment variables
Public repo build scripts
Initial build instructions
Update to Impala v0.3 beta refresh release
Impala code refresh v0.3 -> v0.4 (pre-release version)

* Fix bug in string comparison with empty strings.
* Enable the shell to consume erros and continue for batch processing.
* Fix lpad string function.
* Fix Impala shell ignores TStatus return values
* Fix crash in TopN node with null tuples.
* import saslwrapper instead of sasl for Centos/Rhel
* Add user option to refresh catalogue after connection
* Impala build needs to work on Python 2.4 ("with" keyword not supported)
* Impala server raise exception if query_option is invalid
* Fix linker dependencies.
* print number of scanned partition and total scaned bytes
* INSERTS into unpartitioned tables should be checked for union compatibility
* Add profile counters to data stream sender/receiver.
* Change default for block-metadata enabled to use HDFS default.
* Add Twitter bootstrap to www/
* Improve debug webpage presentation
* Add arguments to webpage callbacks, and add simple fixed-size query log
* Add command line options to the shell which specified which database to use after connecting.
* Store and display results in batches for the shell to not overload memory.
* Allow webserver pages to optionally exclude themselves from navigation
* Bumping version to v0.4
* Fix planner to reject compressed text formats.
* Added missing volume id to webpage metrics.
* Added debug/release to version string.
* Added counter for number of scan ranges per file format/compression type.
* Add the ability to store cross session command history in the shell.
* Fix race condition in opcode registry.
* The shell should display verbose output by default. Add a flag to disable.
* Fix limit issue in exchange node.
* Fix codegen handling of \N (null) for non-string columns.
Impala code refresh v0.4 (pre-release version) -> v0.4

* Fix hdfs-scan-node deadlock.

  row_batches_lock_ should be taken after lock_. But in this bug, we took
  row_batches_lock_ first.

* Fix race condition due to misuse of shared_ptr in StreamControlBlock.
* Removing uses of perf-counters code (will not work on RHEL 5 kernel)
* Fix race condition in opcode registry initialize.
* Add CURRENT_TIMESTAMP() function as synonym for now()
* Fix leak of open hdfs files during cancellation.
* Fix race condition in scanners/scan-node.
* Fix hang for queries when the limit is first reached by the coordinator.

  Remote fragments are waiting for the coordinator to pump rows but the coordinator
  decided it was done.  This caused remote fragments to hang.  The coordinator was
  in turn waiting for the remote fragments to finish.

* Improved metrics for tracking impalad resource utilization.
* Move sparrow/ to statestore/ and remove sparrow namespace
* Added start/end query time to debug webpage.
* Add build option to enable address sanitizer.
* impala-shell calls PingImpalaService thrift API to verify the server is an impalad.
* IMPALA-14: Files with .gz extension reported as 'not supported'
* Use recompiled, relocatable static libraries when they are available