Merge pull request #165 from mikkelhm/master

The three first tutorials on making a new property editor all linked to ...
t do the d
Update general.md
Update general.md
Create Grid-Layout-Best-Practices.md
Update Grid-Layout-Best-Practices.md
updates version on baseUrl docs
Merge branch 'master' of https://github.com/umbraco/Umbraco4Docs
Update Grid-Layout.md
index.md is missing the link the Grid Layout

A very useful resource! I've not added a link to the best practises as I suspect this should come from the Grid Layout page.
Merge pull request #167 from cheeseytoastie/patch-2

index.md is missing a link to the Grid Layout
Update index.md
Update webconfig7.md
Checking new entities in ContentService.Saving event

There was no information about checking if an entity is new in the ContentService.Saving event.
Information gathered from: https://twitter.com/Shazwazza/status/496705715306627074
Merge pull request #168 from kipusoep/patch-1

Checking new entities in ContentService.Saving event
Adds forms and courier docs

Adds a separate products section for documenation
Adds link to products docs on doc frontpage
Simplified log4net config
Merge pull request #169 from wanderingwonderer/patch-1

Simplified log4net config
Update Grid-Layout.md

Additional explanations, spelling, added prevalues and radiobuttonlist,
updated images to show current Grid Layout UI