SQL: suppress warning for BIGINT with sqlite and sqlalchemy<0.8.2 (GH7433)
CI: remove sql from 3.3 build entirely
Merge pull request #7719 from jorisvandenbossche/sql-bigint-sqlite-warning

SQL: suppress warning for BIGINT with sqlite and sqlalchemy<0.8.2 (GH7433)
DOC: clean up 0.14.1 whatsnew file
Merge pull request #7714 from jorisvandenbossche/doc-release

DOC: clean up 0.14.1 whatsnew file
RLS: v0.14.1 final
DOC: add v0.15.0.txt to whatsnew.txt
DOC: 0.15.0 release notes updates
ENH: Add uint and bool support in to_stata

Added support for uint (uint8, uint16 and uint32, but not uint64) and bool
datatypes in to_stata.  closes #7097 and closes #7365