Make Location, Message, MessageContent and Tag comparisons case-sensitive

It makes more sense for their data.

include/loot/metadata/location.h

@@ -54,15 +54,14 @@ public:
   /**
    * A less-than operator implemented with no semantics so that Location objects
    * can be stored in sets.
-   * @returns True if this Location's URL is case-insensitively
-   *          lexicographically less than the given Location's URL, false
-   *          otherwise.
+   * @returns True if this Location's URL string is lexicographically less than
+   *          the given Location's URL string, false otherwise.
    */
   LOOT_API bool operator<(const Location& rhs) const;
 
   /**
    * Check if two Location objects are equal by comparing their URLs.
-   * @returns True if the URLs are case-insensitively equal, false otherwise.
+   * @returns True if the URL strings are equal, false otherwise.
    */
   LOOT_API bool operator==(const Location& rhs) const;
 

include/loot/metadata/message.h

@@ -79,11 +79,8 @@ public:
   /**
    * A less-than operator implemented with no semantics so that Message objects
    * can be stored in sets.
-   * @returns If both messages have content, returns true if this Message's
-   *          English text is case-insensitively lexicographically less than the
-   *          given Message's English text, and false otherwise.
-   *          Otherwise returns true if this Message has no content, and false
-   *          otherwise.
+   * @returns Returns true if this Message's content is lexicographically less
+   *          than the given Message's content, and false otherwise.
    */
   LOOT_API bool operator<(const Message& rhs) const;
 

include/loot/metadata/message_content.h

@@ -73,15 +73,14 @@ public:
   /**
    * A less-than operator implemented with no semantics so that MessageContent
    * objects can be stored in sets.
-   * @returns True if this MessageContent's text is case-insensitively
-   *          lexicographically less than the given MessageContent's text, false
-   *          otherwise.
+   * @returns True if this MessageContent's text is lexicographically less than
+   *          the given MessageContent's text, false otherwise.
    */
   LOOT_API bool operator<(const MessageContent& rhs) const;
 
   /**
    * Check if two MessageContent objects are equal by comparing their texts.
-   * @returns True if the texts are case-insensitively equal, false otherwise.
+   * @returns True if the texts are equal, false otherwise.
    */
   LOOT_API bool operator==(const MessageContent& rhs) const;
 

include/loot/metadata/tag.h

@@ -62,17 +62,15 @@ public:
    * can be stored in sets.
    * @returns True if this Tag is suggested for addition and the other is not.
    *          If both Tags are suggested for addition or both are suggested for
-   *          removal, returns true if this Tag's name is case-insensitively
-   *          lexicographically less than the given Tag's name, false
-   *          otherwise.
+   *          removal, returns true if this Tag's name is lexicographically less
+   *          than the given Tag's name, false otherwise.
    */
   LOOT_API bool operator<(const Tag& rhs) const;
 
   /**
    * Check if two Tag objects are equal.
    * @returns True if both Tags are suggested for addition or both are suggested
-   *          for removal, and the Tag names are case-insensitively equal, false
-   *          otherwise.
+   *          for removal, and the Tag names are equal, false otherwise.
    */
   LOOT_API bool operator==(const Tag& rhs) const;