moved calculated value method into engine 

git-svn-id: svn://svn.code.sf.net/p/magmi/code/trunk@991 8a1fb3a6-a994-4f0a-9076-b49fc636424d
added support for regexp replace from original name in image renaming.
added support for generic calculated value in image renaming

git-svn-id: svn://svn.code.sf.net/p/magmi/code/trunk@992 8a1fb3a6-a994-4f0a-9076-b49fc636424d
added support for regexp replace from original name in image renaming.
added support for generic calculated value in image renaming

git-svn-id: svn://svn.code.sf.net/p/magmi/code/trunk@993 8a1fb3a6-a994-4f0a-9076-b49fc636424d
fixed baseroot handling, thanks to Pierpaolo Toniolo

git-svn-id: svn://svn.code.sf.net/p/magmi/code/trunk@994 8a1fb3a6-a994-4f0a-9076-b49fc636424d
logger normalization between cli & gui

git-svn-id: svn://svn.code.sf.net/p/magmi/code/trunk@995 8a1fb3a6-a994-4f0a-9076-b49fc636424d