Fixes to languages/pl.py file
Begining of Polish translation. Complete translation of Chapter 0 and
Chapter 1, without making changes of images, as yet.
Begining translation of chapter 02
Updated default value of the uploadfolder

Per gluon/dal.py (line 9882) in Web2py 2.9.5 - The default value of the uploadfolder is None.
Updated the documentation to reflect the same.
Full translation of Chapter 02
?
Starting translation of Chapter 03
added docstring style guide per Niphlod's forum post
minimal documentation to udpate the formstyle parameter to SQLFORM
Additional note to default uploadsfolder behavior

Based on suggestions from anthony, clarified that even if default uploadsfolder is None, it doesn't impact most DB adapters.
Small fixes in the content of Chapter 01, and 02. Full translation of
Chapter 03.
Merge branch 'master' into pl-translation
The start of translation od Chapter 04
Merge pull request #197 from timrichardson/api_doc

added docstring style guide per Niphlod's forum post
Merge pull request #198 from timrichardson/formstyle_constructor

minimal documentation to udpate the formstyle parameter to SQLFORM
Merge pull request #199 from abutronik/pl-translation

Pl translation in progress
Merge pull request #192 from mandarvaze/patch-1

Updated default value of the uploadfolder
Correct error on Record Versioning
1. Adding other files to index
2. Some fixes to chapter 00, 01, 02, and 03
3. Partial translation of Chapter 04 (80%)
4. Partial translation of Chapter 15 (60%)
Merge pull request #2 from abutronik/web2py-pl-ab

1. Adding other files to index