Pyexcel-io

--------------------------------------------------------------------------------

**Updated**

. `41 <https://github.com/pyexcel/pyexcel-io/issues/41>`_, walk away
gracefully when mmap is not available.

--------------------------------------------------------------------------------

**Updated**

. `37 <https://github.com/pyexcel/pyexcel-io/issues/37>`_, permanently fix the
residue folder pyexcel by release all future releases in a clean clone.

--------------------------------------------------------------------------------

**Updated**

. `39 <https://github.com/pyexcel/pyexcel-io/issues/39>`_, raise exception
when bulk save in django fails. Please `bulk_save=False` if you as the
developer choose to save the records one by one if bulk_save cannot be used.
However, exception in one-by-one save case will be raised as well. This
change is made to raise exception in the first place so that you as the
developer will be suprised when it was deployed in production.

--------------------------------------------------------------------------------

**Updated**

. 'built-in' as the value to the parameter 'library' as parameter to invoke
pyexcel-io's built-in csv, tsv, csvz, tsvz, django and sql won't work. It is
renamed to 'pyexcel-io'.
. built-in csv, tsv, csvz, tsvz, django and sql are lazy loaded.
. pyexcel-io plugin interface has been updated. v0.3.x plugins won't work.
. `32 <https://github.com/pyexcel/pyexcel-io/issues/32>`_, csv and csvz file
handle are made sure to be closed. File close mechanism is enfored.
. iget_data function is introduced to cope with dangling file handle issue.

**Removed**

. Removed plugin loading code and lml is used instead

--------------------------------------------------------------------------------

**Updated**

. `33 <https://github.com/pyexcel/pyexcel-io/issues/33>`_, handle mmap object
differently given as file content. This issue has put in a priority to single
sheet csv over multiple sheets in a single memory stream. The latter format
is pyexcel own creation but is rarely used. In latter case,
multiple_sheet=True should be passed along get_data.
. `34 <https://github.com/pyexcel/pyexcel-io/issues/34>`_, treat mmap object
as a file content.
. `35 <https://github.com/pyexcel/pyexcel-io/issues/35>`_, encoding parameter
take no effect when given along with file content
. use ZIP_DEFALTED to really do the compression

--------------------------------------------------------------------------------

**Updated**

. `31 <https://github.com/pyexcel/pyexcel-io/issues/31>`_, support pyinstaller