Misc. typos

+ some are doxy others are just comment code.  
+ some minor whitespace and grammatical tweaks. 
+ app/SCL/* typos have also been submitted upstream (https://github.com/stepcode/stepcode/pull/366). So it's ok to merge them in to master.

src/Base/FileTemplate.h

@@ -33,7 +33,7 @@ namespace Base
 
 
 /** A test class. A more elaborate class description.
- * Detaild description with some formating:
+ * Detailed description with some formatting:
  *  \par
  *  bla blablablablablablabl:
  *  \code

src/Base/Writer.h

@@ -103,7 +103,7 @@ public:
     std::vector<std::string> getErrors() const;
     //@}
 
-    /** @name pretty formating for XML */
+    /** @name pretty formatting for XML */
     //@{
     /// get the current indentation
     const char* ind(void) const {return indBuf;}