**Features**
- introduced ``Table`` conversions [3](https://github.com/westandskif/convtools/pull/3)
- added ``c.apply_func``, ``c.apply`` and ``(...).apply_method`` conversions
**Bugfix**
- fixed inner join with inner loop with soft conditions: any condition except
for ``==`` and ``c.and_``
- fixed piping to callable with further calling pipe methods like ``as_type``,
``filter`` and ``sort``
**Misc**
- reworked main converter callable wrapper so that it no longer dumps sources
onto disk for beautiful stacktraces when the converter returns a generator
(it used to make them down almost 2 times slower). If such debugging is
needed, just enable debug. As for simple exceptions, these still dump code to
disc on Exceptions because this should be cheap.