Edit tool_tips for uniform capitalization and punctuation

indra/newview/skins/default/xui/en/floater_about_land.xml

...ewview/skins/default/xui/en/floater_animation_preview.xml

indra/newview/skins/default/xui/en/floater_beacons.xml

indra/newview/skins/default/xui/en/floater_build_options.xml

indra/newview/skins/default/xui/en/floater_camera.xml

indra/newview/skins/default/xui/en/floater_customize.xml

indra/newview/skins/default/xui/en/floater_env_settings.xml

indra/newview/skins/default/xui/en/floater_gesture.xml

indra/newview/skins/default/xui/en/floater_god_tools.xml

...ewview/skins/default/xui/en/floater_hardware_settings.xml

indra/newview/skins/default/xui/en/floater_lagmeter.xml

indra/newview/skins/default/xui/en/floater_land_holdings.xml

indra/newview/skins/default/xui/en/floater_moveview.xml

...ewview/skins/default/xui/en/floater_preview_animation.xml

indra/newview/skins/default/xui/en/floater_preview_sound.xml

.../newview/skins/default/xui/en/floater_preview_texture.xml

indra/newview/skins/default/xui/en/floater_snapshot.xml

indra/newview/skins/default/xui/en/floater_tools.xml

indra/newview/skins/default/xui/en/floater_water.xml

indra/newview/skins/default/xui/en/floater_world_map.xml