fix bug in scrapy parse command when spider is not specified explicitly. closes #209
add documentation topics: Broad Crawls & Common Practies
fixed doc typos
Remove firget imports
Possible set log-level in LogFormatter.dropped and LogFormatter.scraped
Merge pull request #213 from tonal/forget-import

Remove firget imports
Log level return from LogFormatter methods
Merge pull request #214 from tonal/log-level-dropped-item

Make LogFormatter return the log level (and require it)
Fixed typo

'persitent' --> 'persistent'
Merge pull request #215 from kuyan/patch-1

Fixed typo
Added --spider option to "shell" command.
lint and improve images pipeline error logging
Merge pull request #216 from Mimino666/shell-spider-option

Added --spider option to "shell" command.
Fixed error message formatting.
log.err() doesn't support cool formatting and when error occured, the message was:
	"ERROR: Error processing %(item)s"
Added model validation to DjangoItem.
Added "exclude" parameter testing to unittests.
Merge pull request #217 from Mimino666/item-processing-errormsg

Fixed error message formatting.
move FilesystemCacheStorage to scrapy.contrib.httpcache
Merge pull request #218 from Mimino666/django-item-validation

Django item validation
Proposed Changes

I was very confused as to how you actually import DjangoItem.
I searched extensively on the internet looking for actual code so I could see how it worked.
I finally found http://blog.just2us.com/2012/07/setting-up-django-with-scrapy/. It is much easier to understand with full files instead of code fragments.
I also edited where it says "we can see that the model is already saved" as I don't see how it's already saved.