Reflect name change of SkySQL, CMake policy & branching

Following the name change from SkySQL to MariaDB Corporation and the subsequent changes in website layout and naming the README has been updated with the new links.

Described the cmake policy.

MaxScale branching policy.
Changed product name to MariaDB MaxScale in line with company renaming
properly zero-terminate input buffer -  Bug #605

http://bugs.mariadb.com/show_bug.cgi?id=605
Merge pull request #64 from hholzgra/hartmut-bug-605

properly zero-terminate input buffer -  Bug #605
Fix to bug #605, http://bugs.mariadb.com/show_bug.cgi?id=605
Main assumed multi-byte characters in memory allocation but not outside of it so I removed that code and made it consistently assume single-byte characters.
Terminating character was added always to the last byte of string buffer regardless of the length of the string. Removed it and replaced malloc with calloc.
Moved variable introductions from the middle of the function to the beginning of it.
Revert back to vesion dcb8b68ada4f8e05ad124203b1ab401838fc5a34 due to erroneous fix in latest version of canonizer.c