fix typo in content-type header
Merge pull request #58 from smn/master

fix typo in content-type header
add test for issue #58
Close #57. Return error instead of panic when type of time != float
first and last shouldn't be special tokens
formatting (only whitespace changes)
fix #51. Implement first and last aggregates
clean up the aggregators
fix #63. Aggregated results don't include seq number
add some notification in the test script
Add note about building and link to download since some people seem to be confused.
fix joins and merges when the query is descending
Close #70. fix #35. support table aliases in join queries
fix #71. Add WillReturnSingleSeries to the Query
fix #61. Limit defaults to 10K and no default for start time
fix #59. Add histogram aggregate function
update the changelog
fix the build to be version independent on Mac OSX
Update build_parser.sh to work on OS X.
fix the source package