Merge pull request #394 from diethard2/master

added metasearch plugin to documentation and updated screenshots
more help for QGIS algs (port of old help files, needs improvements)
port old SAGA help files (needs improvements)
fixes and additions to guidelines
Reove virtual field info as it has been removed from attribute table
Merge pull request #396 from yjacolin/virtualField

Reove virtual field info as it has been removed from attribute table (#395)
screenshot file is showing old location of the toolbar panels activation list (fix #120) : This is not a screenshot issue, rather a wrong description related to OS guidelines as KDE isthe only
screenshot file is showing old location of the toolbar panels activation list (fix #120).

This is not a screenshot issue, rather a wrong description related to OS guidelines as
KDE is the only one showing project properties, panels and toolbard in Settings menu.
Merge pull request #397 from yjacolin/projectPropertiesMenu

screenshot file is showing old location of the toolbar panels activation list (fix #120).
Two corrections in file

line 229:  Make sure you give the table an ID column with the same data-types as above. --> should be 'datatype' (no plural) since we're talking about just one column

line 343 Install pgAdminIII and you can   ---> space between 'pgAdmin' and 'lll' for reasons of consistency
Merge pull request #398 from DiGro/patch-1

Two corrections in file
Users Manual - Field calculator screenshot update Fixes #395
Merge pull request #399 from SrNetoChan/screenshots

Users Manual - Field calculator screenshot update Fixes #395
Added use of data defined overrides for print composer