Fixing some missing texture links caused by 13461

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13537 3db68df2-c116-0410-a063-a993310a9797
Tech icon tweaks

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13538 3db68df2-c116-0410-a063-a993310a9797
Fix crash in VC++11 debug builds. Fixes #2028. Patch by RedFox.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13539 3db68df2-c116-0410-a063-a993310a9797
- Round attack numbers in the GUI. Patch by scythetwirler. Fix #1997.
- Adjust the siege attack tech to add an integer instead of multiply by a percentage.
- Fix the siege armor tech so the tooltip and the added value match up.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13540 3db68df2-c116-0410-a063-a993310a9797
Display current/max gatherers or builders when a resource or foundation is selected. Based on a patch by mimo. Fix #1871.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13541 3db68df2-c116-0410-a063-a993310a9797
Allow building walls along the shore. Patch by sanderd17. Fix #1610.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13542 3db68df2-c116-0410-a063-a993310a9797
Merge remote-tracking branch 'remotes/trunk'
Pinged entities now get drawn on top by pushing them last into the VertexArray
Pinged entities now get drawn on top by pushing them last into the VertexArray
Merge branch 'master' of https://github.com/0ad/0ad into attack-notification