Fix spelling errors. NFCI. Thanks to jsosef for the patch

doc/test/HTML4_symbols.qbk

@@ -11,7 +11,7 @@ http://www.boost.org/LICENSE_1_0.txt).
 [/ See http://www.htmlhelp.com/reference/html40/entities/symbols.html]
 [/ All (except 2 angle brackets) show OK on Firefox 2.0]
 
-[/ Also some miscellaneous math charaters added to this list - see the end.]
+[/ Also some miscellaneous math characters added to this list - see the end.]
 
 [/ To use, enclose the template name in square brackets.]
 
@@ -99,7 +99,7 @@ http://www.boost.org/LICENSE_1_0.txt).
 [template notin[]'''∉'''] [/  ? not an element of]
 [template ni[]'''∋'''] [/  ? contains as member]
 [template prod[]'''∏'''] [/  ? n-ary product = product sign]
-[template sum[]'''∑'''] [/  ? n-ary sumation]
+[template sum[]'''∑'''] [/  ? n-ary summation]
 [template minus[]'''−'''] [/  - minus sign]
 [template lowast[]'''∗'''] [/  * asterisk operator]
 [template radic[]'''√'''] [/  v square root = radical sign]

doc/test/gold/document_to_test_formatting/images.html

@@ -27,7 +27,7 @@
 <a name="document_to_test_formatting.images"></a><a class="link" href="images.html" title="Images">Images</a>
 </h2></div></div></div>
 <p>
-      These are tricky enough that they warrent their own section.
+      These are tricky enough that they warrant their own section.
     </p>
 <p>
       Let's start with a PNG file that's set to 120dpi, it should render at a sensible

doc/test/gold/document_to_test_formatting/remez.html

@@ -221,7 +221,7 @@
     </p>
 <p>
       In single point exchange, we move the control point nearest to the largest
-      extrema to the absissa value of the extrema.
+      extrema to the abscissa value of the extrema.
     </p>
 <p>
       In multi-point exchange we swap all the current control points, for the locations
@@ -450,7 +450,7 @@
           and then re-minimise.
         </li>
 <li class="listitem">
-          Keep absissa values small: use a change of variable to keep the abscissa
+          Keep abscissa values small: use a change of variable to keep the abscissa
           over, say [0, b], for some smallish value <span class="emphasis"><em>b</em></span>.
         </li>
 </ul></div>

doc/test/gold/index.html

@@ -137,7 +137,7 @@
       We can count in Greek too: α, β, γ.
     </p>
 <p>
-      Try some superscrips and subscripts: x<sup>2</sup>, x<sub>i</sub><sup>3</sup>, &#945;<sup>2</sup>, &#946;<sup>&#945;</sup>, &#8970;x&#8971;, &#8970;&#945;&#8971;, &#8968;a&#8969;.
+      Try some superscripts and subscripts: x<sup>2</sup>, x<sub>i</sub><sup>3</sup>, &#945;<sup>2</sup>, &#946;<sup>&#945;</sup>, &#8970;x&#8971;, &#8970;&#945;&#8971;, &#8968;a&#8969;.
     </p>
 </div>
 </div>

doc/test/remez.qbk

@@ -142,7 +142,7 @@ The N+2 extrema can then be found using standard function minimisation technique
 We now have a choice: multi-point exchange, or single point exchange.
 
 In single point exchange, we move the control point nearest to the largest extrema to
-the absissa value of the extrema.
+the abscissa value of the extrema.
 
 In multi-point exchange we swap all the current control points, for the locations
 of the extrema.
@@ -317,7 +317,7 @@ retaining the last set of control points at each stage.
 * Try using a smaller interval.  It may also be possible to optimise over
 one (small) interval, rescale the control points over a larger interval,
 and then re-minimise.
-* Keep absissa values small: use a change of variable to keep the abscissa
+* Keep abscissa values small: use a change of variable to keep the abscissa
 over, say \[0, b\], for some smallish value /b/.
 
 [h4 References]

doc/test/test.qbk

@@ -35,7 +35,7 @@ This is some body text.
 
 We can count in Greek too: [alpha], [beta], [gamma].
 
-Try some superscrips and subscripts: x[super 2], x[sub i][super 3], [alpha][super 2], 
+Try some superscripts and subscripts: x[super 2], x[sub i][super 3], [alpha][super 2], 
 [beta][super [alpha]], [floor x], [floor [alpha]], [ceil a].
 
 [endsect]
@@ -592,7 +592,7 @@ ibeta_inva, and ibeta_invb respectively.]]
 
 [section Images]
 
-These are tricky enough that they warrent their own section.
+These are tricky enough that they warrant their own section.
 
 Let's start with a PNG file that's set to 120dpi, it should render at 
 a sensible size in both html and PDF forms.  It should print OK too!

doc/test/test_HTML4_symbols.qbk

@@ -2,7 +2,7 @@
 [/ Examples of using all the Greek and Math symbols defined in HTML4_symbols.qbk]
 [/ See http://www.htmlhelp.com/reference/html40/entities/symbols.html]
 
-[/ Also some miscellaneous math charaters added to this list - see the end.]
+[/ Also some miscellaneous math characters added to this list - see the end.]
 
 [/ To use, enclose the template name in square brackets.]