Ensure WMS 1.3 and LayerOptions from GlobalOptions

...for GetFeatureInfo
catch error if mailWindow is null (popup blocker)
Improve QgsSearchCombo

Changes:
- [Feature] replace reset button with ExtJS Trigger to clear search
- position cursor in search field after clearing
- display clear button only if anything is there to be cleared
- ignore user pressing enter during search
- collapse result list when search string is less than minChars
- ensure use of reverseAxisOrder for boundingBox of selected search
  result
Merge pull request #40 from bstroebl/GetFeatureInfo_with_WMS_1_3

Ensure WMS 1.3 and LayerOptions from GlobalOptions
Merge pull request #39 from bstroebl/clearSearchCombo2

Improve QgsSearchCombo
Vaccinate search agains SQL injection

fixes #8202
Merge pull request #41 from bstroebl/fix#8202

Vaccinate search agains SQL injection
make themeSwitcher template a modifiable option
Sanitize searchtables passed to wsgi scripts

fixes #8202
Adapt documentation to new wsgi scripts
Fix pdflatex-error in documentation (no chapter)
Merge pull request #42 from giohappy/master

make themeSwitcher template a global option
Merge pull request #43 from bstroebl/fix#8202

Sanitize searchtables passed to wsgi scripts
fixed typo in themeSwitcherTemplate variable
Merge remote-tracking branch 'upstream/master'