TortoiseGitMerge: When searching text, flash window when end of file reached or text not found

Based on TortoiseSVN revision #24828.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Use the proper format type and size specifiers

Found with Cppcheck and inspired by TortoiseSVN rev. #24808.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Do not include class name in definition

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Reduce scope of variables

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Drop unused code

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Take StringFound() start parameter as both input and output

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
TortoiseGitMerge: Count the number of matches in FindDlg

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
TortoiseGitMerge: Enlarge FindDlg

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
TortoiseGitMerge: Add Status label in FindDlg

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
TortoiseGitMerge: Move match count message to FindDlg status bar

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
TortoiseGitMerge: Show find status Not found, top reached, bottom reached

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
TortoiseGitMerge: Add Search Up direction

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>