Corrected the example for WCS raster loading

I changed the example for two reason

1) work on the really demo WCS server offered by mapserver
2) it works :)
3) added reference to URI documentation wrote by Radim in wcs provider
two typos

line 290:  in each color dialog window of the renderes ---> 'renderes' should be 'renderers'

line 292: and paste operations -----> 'operation" should be plural 'operations' since we are talking about 'some copy and paste' (plural)
two typos corrected

line 63: edit Ankorage, because that is a 'Manicpality' --> 'Ankorage' = 'Anchorage" ;  'Manicpality' = 'Municipality'
Multiple changes/typos

line 73 : Just clic on :guilabel:` Save Style` comboxbox and choose  --> 'çlic'  should be 'click' 

line 149: and/or label of the clic, just double clicking on the item you want to -->  'clic' should probably be 'class'
                                                                        -->  'double clicking' should be 'double click'
																		
line 152 : Right-clic shows a contextual menu   ----> 'Right-clic' should be 'Right-click'

line 231 :Right-clic shows a contextual menu   ----> 'Right-clic' should be 'Right-click'

line 319 : As before you can select a subrenderers  ---> 'a' is superfluous. 'subrenderers' is plural and sufficient

line 568 : label (above, belw or on the line), ---------> 'belw' = 'below'

line 625 : Related to the choose of Label Placement  ---> 'choose' should be 'choice'

line 708 : you have hundreds if functions available ---> 'if' should be 'of' 
 
line 719 :  for more information and example on expressions. ----.  'example' should be plural since there are more then one example in the chapter Expressions
 
line 799 : Displays a line fields which can opens a   --->'fields'should be 'field' ; 'can opens' should be 'can open'

line 1329 : See :ref:`vector_expressions` chapter for more information and example. ---> 'example' should be plural since there are more then one example in the chapter Expressions
Corrected some grammar and typo's

line 17 : :guilabel:`Plugins > Manage and install pluginsi ...`.   ---> ' pluginsi' should be  'plugins'
 
line 21:  some plugins updating ------> 'some plugins updating' should be 'some updates for plugins'
Replaced outdated link

The mentioned link was outdated and intended for PostgreSQL 8.3.

added the link to PostgreSQL 9.0
http://www.postgresonline.com/downloads/special_feature/postgresql90_cheatsheet_A4.pdf
Merge pull request #411 from DiGro/patch-2

Replaced outdated link
Merge pull request #410 from DiGro/patch-1

Corrected some grammar and typo's
Merge pull request #409 from DiGro/patch-7

Multiple changes/typos
Merge pull request #408 from DiGro/patch-6

two typos corrected
Merge pull request #407 from DiGro/patch-5

two typos
Merge pull request #405 from luipir/master

Corrected the example for WCS raster loading
Several corrections to the file

line 191 : and draw it to a new location to change it's size. ---> 'draw' should be 'drag'

line 192 : Change it the value  ---> 'it' can be removed. Has no use here

line 462 : you can active the checkbox ---> 'active' should be 'activate'

line 463  :Expand this option to provides a lot of configuration option ---> 'provides' should be 'provide'

line 673 : **Search directories** and  ---->  double spacing before 'and'

line 774 : Use the **[filter]** button the filter the legend ---- 'the filter' should be 'to filter'

line 777 :can click on **[Update]** to adapt  ----> button is called 'Update All', not just 'Update'

line 802 : font items in the legen..  -----> 'legen..'  should be 'legend.'

line 813 : WMS legendGraphic and Spacing ---->  'legendGraphic' should be 'LegendGraphic' (capital L)

line 816 : The :guilabel:`WMS legendGraphic`  ---->  'legendGraphic' should be 'LegendGraphic' (capital L)

line 835 : :guilabel:`WMS legendGraphic` ---->  'legendGraphic' should be 'LegendGraphic' (capital L)

line 836 : :guilabel:`legend hight`  ----> `legend hight` should be 'Legend hight' (capital L)
 
line 1059 :  Sets the size of Start and/or headmarker  ----> 'headmarker' should probably be 'End marker'
 
line 1177 : or insert a regular expressing use ----> 'expressing'  should be 'expression'; 'use' should be 'using'
 
line 1479: Guide are moved by  ---> 'Guide' should be 'Guides'
 
line 1651 : in the :guilabel:`Composite` tab for field :guilabel:`Presets`. ---> 'Composite' should be 'Composition'
Merge pull request #412 from DiGro/patch-3

Several corrections to the file
fix formatting in PyQGIS cookbook
fix links
yet another formatting fix
Four corrections in file

line 413 : against the :kbd:`multipolygon` layer, ----> `multipolygon` should be `multipolygons`

line 428 : to use again the :kbd:`multipolygon` data  ----> `multipolygon` should be `multipolygons`

line 471 : smoother. Compare this: ----->  double space before 'Compare'

line 850 ; The schema for the table (enter :kbd:`\\d people`) looks like this:: --> '\d people' need to be '\\d' to show the backslash
Another four corrections

line 8   : contains native algorithm that need no external software ---> 'algorithm' should be 'algorithms'(plural)

line 24 : in case it is a multipart features, ---> 'features' should be 'feature' (singular)

line 44 : CRS as the input. Geoalgorithms  ---> double spacing before 'Geoalgorithms'

line 44 : all input layers share the in the same CRS  ---->  'in the' is superfluous here. No need for.

;ine 44 : and does not perform any reprojection ----> 'does', needs to be plural 'do' since it refers to 'Geoalgorithms'
Merge pull request #414 from DiGro/patch-2

Another four corrections