Modified travis to not compile plugins

Thanks to Haruna.

Signed-off-by: shennetsind <ind@henn.et>
Follow-up to 3b0cd11f980a48b903262c857fde1cd9c784c2e0

- Changed <?  ?> to <"  "> after some further brainstorming. Special
  thanks to Yommy.

Signed-off-by: Haru <haru@dotalux.com>
Follow-up to 124ab2a1cdb344f24170a4d91f7000ebabf39b40

- Changed a few leftover NPC IDs to constants
- Note: we're still missing support for mob sprite constants, so the
  NPCs using mob sprites are still not converted.

Signed-off-by: Haru <haru@dotalux.com>
pc_groups interfaced

The last file without a interface is now no more (date.h doesn't count :P).
Modified the way permissions are stored in order to enable plugins to be able to create permissions ( pcg->add_permission("name") [returns permission key] ).
Special Thanks to Haruna!
Closes #121

Signed-off-by: shennetsind <ind@henn.et>
Merge branch 'master' of https://github.com/HerculesWS/Hercules
HPM Hooks Update

Signed-off-by: HerculesWSAPI <Hercules@efficiently.awesome>
Introducing the Hercules Standalone Script Syntax Checker

- Added a command line argument '--script-check' to check a script's
  syntax without running the server (and without requiring a SQL
  connection). Usage: ./map-server --script-check /path/to/the/script.txt
- For convenience, a script-checker bash script is provided, to set the
  path correctly when called from a different directory. Usage:
  /path/to/Hercules/script-checker /path/to/the/script/to/check.txt
- While the script checker will supposedly work under windows as well,
  no convenience scripts are currently provided for platforms other than
  UNIX (feel free to open a pull request with a .bat launcher or
  whatever you like)
- Integration with IDEs or text editors is possible. In fact, I already
  have a fully functional plugin for vim (through vim-syntastic), and if
  there's enough interest, I'll publish it. - screenshot: http://d.pr/i/NOBD
- If you want an online checker, http://haru.ws/scriptchecker/ is
  running this code, without modifications and will be kept up to date
  (without any warranty though.)