add sub-method getImageExtensions() with EP "OOMEDIA_IMAGE_EXTENSIONS"
serve non-static imageExtensions from OOMedia as var to scripts
use var imageExtensions in REX_MEDIA widgets..
rename JS var: imageExtensions -> rex_imageExtensions
move EP "OOMEDIA_IMAGE_EXTENSIONS" ..
add EPs "IMAGE_MANAGER_INIT" & "IMAGE_MANAGER_FILTERSET"
fix typo/merge error..
Added redaxo/files/generated vars to master.inc.php
Replaced generated string with rex var
use $REX['IMAGE_EXTENSIONS']
phpmailer. strict standard warning entfernt
use $REX['MEDIAPOOL']['IMAGE_EXTENSIONS']
Merge pull request #108 from jdlx/addons/image_manager/init_and_filterset_EPs

add EPs "IMAGE_MANAGER_INIT" & "IMAGE_MANAGER_FILTERSET"
New media addon dir rexvar added to master.inc.php
New function getMediaAddonFolder added
replaced strings with media vars and media addon vars
use $REX['MEDIAPOOL']['IMAGE_TYPES'] & $REX['MEDIAPOOL']['ALLOWED_DOCTYPES']
Removed backend dir var for now
Removed a slash :)
Added DIRECTORY_SEPERATOR and global vars in one line