Added position to navSeparatorAdd

Added the position option to navSeparatorAdd such that it works like navButtonAdd. This allows the seperator to be added to the "front".
tabindex attribute changed from 1 to 0.

Having the tabindex set to 1 was causing the focus to jump around
the screen quite a bit e.g. hitting <tab> would go straight to the
jqGrid, but subsequent <tab> key presses would then jump back up
to the main navigational links.

Changing the tabindex to zero meant that jqGrid <table> can still
receive the focus, but receives it according to the normal document
flow.
Update js/i18n/grid.locale-fa.js

I replaced ردبف with ردیف
Spell problem
Fix editing textares containing td elements. Thanks to para.
Fix the calling onPaging before calculation of pages and etc.
Merge pull request #372 from OmidID/patch-1

Update js/i18n/grid.locale-fa.js
Merge pull request #370 from ianoxley/tabzero

tabindex attribute changed from 1 to 0.
Merge pull request #368 from powercat97/master

navSeparatorAdd changed to accept position option like naveButtonAdd.
Fix jqModal setExpresssion not cause exception in IE8, IE9
Merge branch 'master' of git@github.com:tonytomov/jqGrid.git
Fixed search filters addition/deletion

Issue
1. Select not null/is null from filter
2. Try adding another filter.
3. Notice the fields against not null/is null filter are not readonly anymore.

This fix maintains the readonly state for search ops involving null.
fixed for chrome
Fix cellattr to accept record row as array. Thanks to Oleg
Fix scroll the grid to top after selecting a cell in celledit mode
Fix addChiledNode not to expand rows if it is not set as such
Fix for cellattr to call rowdata in addRowData
Typo fix defaulValue in grid.locale-no.js
Update js/i18n/grid.locale-ru.js

some translations added
Update js/jquery.fmatter.js

resolves issue #379
Merge pull request #380 from kccarter/patch-1

Update js/jquery.fmatter.js