Merge tag '0.7' into develop

Fixed compiler errors and warnings for clang.
Smaller memory footprint for non-dynamic cases.
Unified interface for where and dynamic_where.

Compatible with previous interface.
Both where and dynamic where can now take a variable amount of
arguments. where() requires at least one argument.
Streamlined usage of dynamic and non-dynamic method versions

from, where, having, group_py, order_by, using.

Prepared on() as well
Added verbatim table
Allow non-zero start values for dynamic limit and offset
Merge branch 'release/0.8'