Update 1.31 to 1.50

---------------------
1.50 2014-07-25

  [BUG FIXES]
  The 80_odbc_diags.t test could fail if a driver fails a table does
  not exist test in the prepare instead of the execute.

1.49_4 2014-07-08

  [BUG FIXES]
  Fixed sql_type_cast.t test which assumed column aliases which stay
  lowercase.

  Fixed 87_odbc_lob_read.t test which did not bow out of the test
  properly if the database was not MS SQL Server.

  [DOCUMENTATION]
  Revised the query notification example and documentation.

  Added a link to a better Query Notification article.

1.49_3 2014-05-01

  [CHANGE IN BEHAVIOUR]
  As warned years ago, this release removes the odbc_old_unicode attribute.
  If you have a good reason to use it speak up now before the next non-development
  release.

  [BUG FIXES]
  Fix rt89255: Fails to create test table for tests using PostgreSQL odbc driver.
  Change test suite to fallback on PRECISION if COLUMN_SIZE is not found.

  [ENHANCEMENTS]
  Added support for MS SQL Server Query Notification. See the new
  section in the pod.

  Added a currently undocumented (and experimental)
  odbc_describe_param method on a statement handle which takes a
  parameter number as the only argument and returns an array of the
  data type, parameter size, decimal digits and nullable (as per
  SQLDescribeParam).

  [DOCUMENTATION]
  Added FAQ on truncated column names with freeTDS.

  [MISCELLANEOUS]
  I have removed the "experimental" tag for odbc_getdiaffield and odbc_getdiagrec
  methods.

1.49_2 2014-04-26

  [BUG FIXES]
  Change to data_sources in 1.49_1 could lead to a compile error since
  data_sources was not returning a value if an error occurred.

1.49_1 2014-04-25

  [BUG FIXES]
  If you had a lot of DSNs on Windows (more than 280 but it depends on
  the length of their names) and called the data_sources method it
  could crash your script. Code internally changed to stop putting the DSNs
  returned on the stack.

  [CHANGE IN BEHAVIOUR]
  As warned years ago, the private data_sources method has been
  removed - use DBI one instead.

  [MISCELLANEOUS]
  Added FAQ entry of maximum number of allowed parameters.


  List just of date for old changes, see ChangeLog in source, thank you.
1.48 2014-03-03
1.47 2014-02-19
1.46_2 2013-12-17
1.46_1 2013-11-16
1.45 2013-10-28
1.44_4 2013-10-16
1.44_3 2013-10-11
1.44_3 2013-10-11
1.44_2 2013-09-07
1.44_1 2013-06-06
1.43 2013-03-06
1.42_5 2013-01-25
1.42_4 2013-01-21
1.42_3 2013-01-17
1.42_2 2012-12-17
1.42_1 2012-12-12
1.42_0 2012-11-28
1.41 2012-10-23
1.40_3 2012-10-08
1.40_2 2012-09-06
1.40_1 2012-09-04
1.39 2012-07-07
1.38_3 2012-06-25
1.38_2 2012-05-24
1.38_1 2012-05-19
1.37 2012-04-07
1.36_2 2012-03-31
1.36_1 2012-03-21
1.35 2012-03-06
1.34_7 2012-03-02
1.34_6 2012-02-27
1.34_5 2012-02-17
1.34_4 2012-02-05
1.34_3 2012-02-03
1.34_2 2012-01-25
1.34_1 2011-12-11
1.33 2011-12-01
1.32_5 2011-11-24
1.32_4 2011-11-22
1.32_3 2011-11-15
1.32_2 2011-10-22
1.32_1 2011-06-24

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