Fixed compile of the libraries with MinGW 4.8 on Windows.

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6814 b45a01b8-16f6-495d-af2f-9b41ad6348cc
Added a default stylesheet for the send button

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6815 b45a01b8-16f6-495d-af2f-9b41ad6348cc
fixed to show the General tab by default

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6816 b45a01b8-16f6-495d-af2f-9b41ad6348cc
Added a warning info label for the make friend Wizard

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6817 b45a01b8-16f6-495d-af2f-9b41ad6348cc
Moved help browser from MainPage to a new base class named FloatingHelpBrowser for global usage.
Added FloatingHelpBrowser to the option window (help text not including).
The help text can be specified for the ConfigPages in the method "helpText".

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6818 b45a01b8-16f6-495d-af2f-9b41ad6348cc