Don't ignore txt files.

.gitignore

@@ -1,12 +1,3 @@
-# extension txt
-*.txt
-!README.txt
-!readme.txt
-!COPYING.txt
-!imagemagick_command.txt
-!utils/umc_dev/org.wesnoth/templates/**/*.txt
-!CMakeLists.txt
-
 # project files
 .*project
 Project.*
@@ -22,13 +13,12 @@ cmake_install.cmake
 CPack*Config.cmake
 uninstall.cmake
 CMakeCache.txt
-!doc/**/CMakeLists.txt
-!src/ana/**/CMakeLists.txt
 
 # scons
 .scons-option-cache
 *sconsign.dblite
 .sconf_temp
+buildlog.txt
 
 # win32/MSVC:
 ALL_BUILD.vcproj