Log Message:
Updated Texmaker to version 4.3.
Also made building using qt5 an option instead of always using it since
qt5 in pkgsrc seems broken.

Texmaker Changelog:
version 4.2 -> 4.3 :
- a visual diff view has been added to the "source viewer" (differences 
between the current files loaded in the editor and in the "source 
viewer") based on jsdifflib from Chas Emerick (BSD license)
- when a command fails, the command is now displayed with the error 
message "Could not start the command"
- an "reload all documents from file" option has been added to the 
"File" menu (users request)
- if a "completion.txt" file is found in the same directory than 
texmaker.exe on windows, in the "/usr/share/texmaker/" folder on linux 
and in the "Resources" subdirectory of the .app package on macosx, all 
items from this file will be added automatically for the autocompletion 
(the syntax must be the same than for the ."Customize completion" option 
of the "User" menu.
- an option to launch the "Clean" tool when exiting the program has been 
added (users request)
- a texmaker man page and a texmaker.menu file have been added in the 
"utilities" directory of the source (thanks to Bernd Warken for the 
man-page)
- the cs, el, es, hu and se translations have been updated (thanks to 
all the translators)
version 4.1.1 -> 4.2 :
Features :
- script support has been added (only for the text editor part - "User" 
menu)
- with the new option "-n" for the command line, a new instance of 
Texmaker can be launched (will break the synchronization with the pdf 
viewers and others feautures)
- hu and nl translations have been updated
- the windows and macosx lion/maverick versions are now compiled with Qt 
5.2.1
Bugs fixed :
- while loading the last session, the bug about the focus has been fixed
- a bug about the "commands" combo box in the main toolbar has been 
fixed
- a typo in the russian translation has been fixed
- a bad trigger detection for the snippets has been fixed