Remove need for patches in /freeciv/patches directory.

[cpetry]

Major Origin: Issue from TODO txt file. (refs #91)

[mchenryc]

Current patch list:

• [ ] freeciv_web_packets_def_changes
• [ ] city_impr_fix2
• [ ] city-naming-change
• [ ] metachange
• [ ] text_fixes
• [ ] unithand-change2
• [ ] freeciv-svn-webclient-changes
• [ ] goto_fcweb
• [ ] misc_devversion_sync
• [ ] tutorial_ruleset
• [ ] savegame
• [ ] maphand_ch
• [ ] ai_traits_crash
• [ ] server_password
• [ ] barbarian-names
• [ ] activity_null_check
• [ ] message_escape
• [ ] freeciv_segfauls_fix
• [ ] scorelog_filenames
• [ ] disable_global_warming
• [ ] win_chance
• [ ] navajo-remove-long-city-names
• [ ] webperimental_install
• [ ] longturn
• [ ] max_map_size
• [ ] load_command_confirmation
• [ ] pragma_pack_city_length
• [ ] webgl_vision_cheat_temporary
• [ ] endgame-mapimg
• [x] mapimg_bugfix (pending #222)