Fix non-precompiled-header compilation

Originally committed to SVN as r6807.

aegisub/src/audio_player_openal.h

@@ -51,6 +51,8 @@
 
 #ifndef AGI_PRE
 #include <vector>
+
+#include <wx/timer.h>
 #endif
 
 /// DOCME

aegisub/src/command/command.cpp

@@ -25,6 +25,10 @@
 
 #include <libaegisub/log.h>
 
+#ifndef AGI_PRE
+#include <wx/intl.h>
+#endif
+
 namespace cmd {
 	static std::map<std::string, Command*> cmd_map;
 	typedef std::map<std::string, Command*>::iterator iterator;

aegisub/src/dialog_style_manager.cpp

@@ -43,6 +43,7 @@
 
 #include <wx/bmpbuttn.h>
 #include <wx/clipbrd.h>
+#include <wx/dir.h>
 #include <wx/filedlg.h>
 #include <wx/filename.h>
 #include <wx/intl.h>