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
Merge pull request #409 from DiGro/patch-7

Multiple changes/typos