CLEANUP: some compiler and static analysis warnings

src/util/GLFont.h

@@ -18,8 +18,8 @@ public:
     GLFontStringCache();
     int drawlen;
     int vpx, vpy;
-    int pxHeight;
-    float msgWidth;
+    int pxHeight = 0;
+    float msgWidth = 0.0f;
     std::atomic_int gc;
     std::vector<float> gl_vertices;
     std::vector<float> gl_uv;

src/util/Gradient.cpp

@@ -24,19 +24,19 @@ std::vector<float> &Gradient::getBlue() {
 }
 
 void Gradient::generate(unsigned int len) {
-    unsigned int chunk_size = len / (colors.size() - 1);
+    size_t chunk_size = len / (colors.size() - 1);
 
-    unsigned int p = 0;
+    size_t p = 0;
     r_val.resize(len);
     g_val.resize(len);
     b_val.resize(len);
 
-    for (unsigned int j = 0, jMax = colors.size() - 1; j < jMax; j++) {
+    for (size_t j = 0, jMax = colors.size() - 1; j < jMax; j++) {
         if ((chunk_size * (jMax)) < len && (j == jMax - 1)) {
             chunk_size += len - chunk_size * (jMax);
         }
 
-        for (unsigned int i = 0; i < chunk_size; i++) {
+        for (size_t i = 0; i < chunk_size; i++) {
             float idx = (float) (i) / (float) chunk_size;
 
             float r1 = colors[j].r;

src/util/Timer.cpp

@@ -56,7 +56,7 @@ void Timer::unlock()
 
 	update();
 	
-	last_update = system_milliseconds-lock_rate;
+	last_update = system_milliseconds-(unsigned long)lock_rate;
 	
 	offset += msec_tmp-system_milliseconds;