Cleanup unneeded headers (thanks Slava Semushin)

ChangeLog

@@ -1,6 +1,9 @@
 (Format: Year/Month/Day)
 Changes for 0.9.16:
 *06/04/25:
+   * Cleanup unneeded headers (thanks Slava Semushin)
+     FbAtoms.cc Slit.cc Keys.cc FocusControl.cc FbTk/App.cc
+     util/fbrun/FbRun.cc
    * Fix occasional highlighting of menu nops+separators, sf.net patch 
      #1475268 (thanks Scott Kuhl; skuhl AT cs utah edu)
      FbTk/MenuSeparator.hh/cc FbTk/Menu.cc MenuCreator.cc

src/FbAtoms.cc

@@ -25,11 +25,6 @@
 #include "App.hh"
 
 #include <string>
-#ifdef HAVE_CASSERT
-  #include <cassert>
-#else
-  #include <assert.h>
-#endif
 
 using namespace std;
 

src/FbTk/App.cc

@@ -25,11 +25,6 @@
 
 #include "EventManager.hh"
 
-#ifdef HAVE_CASSERT
-  #include <cassert>
-#else
-  #include <assert.h>
-#endif
 #include <string>
 
 namespace FbTk {

src/FocusControl.cc

@@ -31,8 +31,8 @@
 #include "FbWinFrameTheme.hh"
 
 #include <string>
-#include <cassert>
 #include <iostream>
+
 using std::cerr;
 using std::endl;
 using std::string;

src/Keys.cc

@@ -87,11 +87,6 @@
 #include <fstream>
 #include <vector>
 #include <map>
-#ifdef HAVE_CASSERT
-  #include <cassert>
-#else
-  #include <assert.h>
-#endif
 #include <memory>
 
 using namespace std;

src/Slit.cc

@@ -67,11 +67,6 @@
 
 #include <algorithm>
 #include <iostream>
-#ifdef HAVE_CASSERT
-  #include <cassert>
-#else
-  #include <assert.h>
-#endif
 
 #ifdef HAVE_SYS_STAT_H
 #include <sys/types.h>

util/fbrun/FbRun.cc

@@ -48,13 +48,9 @@
 #include <iterator>
 #include <fstream>
 #include <algorithm>
-#ifdef HAVE_CASSERT
-  #include <cassert>
-#else
-  #include <assert.h>
-#endif
 
 using namespace std;
+
 FbRun::FbRun(int x, int y, size_t width):
     FbTk::TextBox(DefaultScreen(FbTk::App::instance()->display()),
                   m_font, ""),
@@ -395,9 +391,11 @@ void FbRun::tabCompleteApps() {
             size_t rseparator= prefix.find_last_of("/");
             path= prefix.substr(0, rseparator + 1) +  ":";
             add_dirs= true;
-        } else
-            path= getenv("PATH");
-
+        } else {
+            char* tmp_path = getenv("PATH");
+            if (tmp_path)
+                path = tmp_path;
+        }
         m_apps.clear();
 
         unsigned int l;