#133 Replace all should save position of first occurence

[Erik Hänel]

Replace all should save the position of the first occurence of the found string, because otherwise replace all could result in an endless loop if combined with wrap around and a replace string containing the search string.

Analysis:
Some additional logic has to be implemented in NumeReWindow::ReplaceAllStrings(), e.g. going to Position 0 and removing the wxFR_WRAPAROUND flag locally, if this flag was set.

Implementation:
The following lines were added to the function ReplaceAllStrings():

if (flags & wxFR_WRAPAROUND)
{
    m_currentEd->GotoPos(0);
    flags &= flags & ~wxFR_WRAPAROUND;
}

This prevents NumeRe from looping.

Additionally the following issues were processed:

• The replace dialog was locked even if one entered a find string.
• The replace button was set to match case even if the dialog explicitely was not

Documentation:
Not needed - Bug fix.

Tests:
Repeated tests of the replace all functionality with replace strings containing the search string were passed without any deviation. Search and replace dialogs working as expected. Bug fix accepted.