Lexer: Migrated commify, ucFirst and lowerCase from text to Lexer

src/Color.cpp

@@ -25,13 +25,14 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 #include <cmake.h>
+#include <Color.h>
 #include <iostream>
 #include <iomanip>
 #include <sstream>
 #include <vector>
 #include <algorithm>
 #include <main.h>
-#include <Color.h>
+#include <Lexer.h>
 #include <text.h>
 #include <i18n.h>
 
@@ -112,7 +113,7 @@ Color::Color (const std::string& spec)
   std::string word;
   for (auto& it : words)
   {
-    word = lowerCase (trim (it));
+    word = Lexer::lowerCase (trim (it));
 
          if (word == "bold")      fg_value |= _COLOR_BOLD;
     else if (word == "bright")    bg_value |= _COLOR_BRIGHT;