Renamed classes and files for "Me" task panel for better readability.

Renamed files:
- indra/newview/llpanelmeprofile.{cpp,h} to llpanelme.{cpp,h}
- panel_me_profile.xml to panel_me.xml
- panel_profile_user.xml to panel_my_profile.xml

Renamed classes:
- LLPanelAvatarMeProfile to LLPanelMyProfile
- LLPanelMeProfile to LLPanelMe
- LLPanelMeProfileEdit to LLPanelMyProfileEdit

--HG--
branch : product-engine