Java doc: Terminology tweaks

- "function" = "method"
- "decompression and transform functions" = "decompression and transform
  operations" (for consistency with the 2.1.x documentation)
- "return an error" = "throw an error"
- "ceil()" = "Math.ceil()"

java/doc/org/libjpegturbo/turbojpeg/TJ.html

@@ -1567,7 +1567,7 @@ extends java.lang.Object</pre>
  transformation]
 
  <p>Setting this parameter will cause the decompression and transform
- functions to return an error if the number of scans in a progressive JPEG
+ operations to throw an error if the number of scans in a progressive JPEG
  image exceeds the specified limit.  The primary purpose of this is to
  allow security-critical applications to guard against an exploit of the
  progressive JPEG format described in
@@ -1576,7 +1576,7 @@ extends java.lang.Object</pre>
  <p><b>Value</b>
  <ul>
  <li> maximum number of progressive JPEG scans that the decompression and
- transform functions will process <i>[default: <code>0</code> (no
+ transform operations will process <i>[default: <code>0</code> (no
  limit)]</i>
  </ul></div>
 <dl>

java/doc/org/libjpegturbo/turbojpeg/TJCustomFilter.html

@@ -153,7 +153,7 @@ $('.navPadding').css('padding-top', $('.fixedNav').css("height"));
             int transformID,
             <a href="TJTransform.html" title="class in org.libjpegturbo.turbojpeg">TJTransform</a>&nbsp;transform)</code></th>
 <td class="colLast">
-<div class="block">A callback function that can be used to modify the DCT coefficients after
+<div class="block">A callback method that can be used to modify the DCT coefficients after
  they are losslessly transformed but before they are transcoded to a new
  JPEG image.</div>
 </td>
@@ -188,7 +188,7 @@ $('.navPadding').css('padding-top', $('.fixedNav').css("height"));
                   int&nbsp;transformID,
                   <a href="TJTransform.html" title="class in org.libjpegturbo.turbojpeg">TJTransform</a>&nbsp;transform)
            throws <a href="TJException.html" title="class in org.libjpegturbo.turbojpeg">TJException</a></pre>
-<div class="block">A callback function that can be used to modify the DCT coefficients after
+<div class="block">A callback method that can be used to modify the DCT coefficients after
  they are losslessly transformed but before they are transcoded to a new
  JPEG image.  This allows for custom filters or other transformations to be
  applied in the frequency domain.</div>
@@ -197,12 +197,12 @@ $('.navPadding').css('padding-top', $('.fixedNav').css("height"));
 <dd><code>coeffBuffer</code> - a buffer containing transformed DCT coefficients.
  (NOTE: this buffer is not guaranteed to be valid once the callback
  returns, so applications wishing to hand off the DCT coefficients to
- another function or library should make a copy of them within the body of
- the callback.)</dd>
+ another method should make a copy of them within the body of the
+ callback.)</dd>
 <dd><code>bufferRegion</code> - rectangle containing the width and height of
  <code>coeffBuffer</code> as well as its offset relative to the component
  plane.  TurboJPEG implementations may choose to split each component plane
- into multiple DCT coefficient buffers and call the callback function once
+ into multiple DCT coefficient buffers and call the callback method once
  for each buffer.</dd>
 <dd><code>planeRegion</code> - rectangle containing the width and height of the
  component plane to which <code>coeffBuffer</code> belongs</dd>

java/doc/org/libjpegturbo/turbojpeg/TJScalingFactor.html

@@ -299,9 +299,9 @@ extends java.lang.Object</pre>
 <li class="blockList">
 <h4>getScaled</h4>
 <pre class="methodSignature">public&nbsp;int&nbsp;getScaled&#8203;(int&nbsp;dimension)</pre>
-<div class="block">Returns the scaled value of <code>dimension</code>.  This function
- performs the integer equivalent of
- <code>ceil(dimension * scalingFactor)</code>.</div>
+<div class="block">Returns the scaled value of <code>dimension</code>.  This method performs
+ the integer equivalent of
+ <code>Math.ceil(dimension * scalingFactor)</code>.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>dimension</code> - width or height to multiply by this scaling factor</dd>