Made monster nests not start spawning babies until turn 10, per forum discussions.

git-svn-id: https://freeorion.svn.sourceforge.net/svnroot/freeorion/trunk@5749 dbd5520b-6a0a-0410-a553-f54834df5b05
-Changed cost for stargates to a more balanced 500 base cost  + 50 cost increase per stargate already owned (as suggested by eleazar) instead of the rather excessive 250 base + 100 increase

-Xcode project:
--Updated version string in info.plist to 0.4.2
--Set filetype of version.template to "sourcecode.cpp" to enable proper C++ syntax highlighting for this file

git-svn-id: https://freeorion.svn.sourceforge.net/svnroot/freeorion/trunk@5750 dbd5520b-6a0a-0410-a553-f54834df5b05
Merge remote-tracking branch 'svn-mirror/master'