Updating golang dependancies (#4075)

vendor/github.com/go-sql-driver/mysql/CHANGELOG.md

@@ -1,34 +1,3 @@
-## HEAD
-
-Changes:
-
- - Go 1.1 is no longer supported
- - Use decimals field from MySQL to format time types (#249)
- - Buffer optimizations (#269)
- - TLS ServerName defaults to the host (#283)
-
-Bugfixes:
-
- - Enable microsecond resolution on TIME, DATETIME and TIMESTAMP (#249)
- - Fixed handling of queries without columns and rows (#255)
- - Fixed a panic when SetKeepAlive() failed (#298)
- - Support receiving ERR packet while reading rows (#321)
- - Fixed reading NULL length-encoded integers in MySQL 5.6+ (#349)
- - Fixed absolute paths support in LOAD LOCAL DATA INFILE (#356)
- - Actually zero out bytes in handshake response (#378)
- - Fixed race condition in registering LOAD DATA INFILE handler (#383)
- - Fixed tests with MySQL 5.7.9+ (#380)
- - QueryUnescape TLS config names (#397)
- - Fixed "broken pipe" error by writing to closed socket (#390)
-
-New Features:
- - Support for returning table alias on Columns() (#289, #359, #382)
- - Placeholder interpolation, can be actived with the DSN parameter `interpolateParams=true` (#309, #318)
- - Support for uint64 parameters with high bit set (#332, #345)
- - Cleartext authentication plugin support (#327)
-
-
-
 ## Version 1.2 (2014-06-03)
 
 Changes: