Minor edits to continuous integ slides, admin note on A2 sample solution

Lectures/L31_OverviewOfTesting/OverviewOfTesting.tex

@@ -81,6 +81,8 @@ TBD
 
 \item Today's slide are partially based on slides by Dr.\ Wassyng
 
+\item A2: Solution pushed to repo
+
 \item A3: Part 2 - Code: due 11:59 pm Mar 26
 
 \item A4: Due April 9 at 11:59 pm
@@ -300,17 +302,19 @@ validity
   other build tasks
 \item Build server
 \bi
+\item Regression tests
+\bi 
 \item Unit tests
 \item Integration tests
+\item Portability tests
+\ei
 \item Static analysis
 \item Profile performance
 \item Extract documentation
 \item Update project web-page
-\item Portability tests
 \item etc.
 \ei
-\item Avoids potentially extreme problems with integration when the baseline and
-  a developer's code greatly differ
+\item Addresses sync between baseline and a developer's code
 \end{itemize}
 \end{frame}