make necessary adjustments to support a build of gzip using a dummy toolkit (i.e. using system compiler):
 * fix raising of errors (refs #125)
 * fix reporting for missing environment-modules (refs #7)
 * fix function names after refactoring in framework.application (refs #125)
 * fix getting Application instance (refs #125)
 * fix default value for toolkit (refs #7)
 * improve logging (and stdout output) (refs #7 refs #57)
 * add default logFormat (so build_log testing works) (refs #7)

make necessary adjustments to support a build of gzip using a dummy toolkit (i.e. using system compiler):
 * fix raising of errors
 * fix reporting for missing environment-modules
 * fix function names after refactoring in framework.application
 * fix getting Application instance
 * fix default value for toolkit
 * improve logging (and stdout output)
 * add default logFormat (so build_log testing works)

remove UTF-8 stuff from tools/class_dumper.py

improved add_header script: fix default skip regexp, only patch .py/.sh files that don't start with '.', skip directories that start with '.' (refs #122)

improved add_header script: fix default skip regexp, only patch .py/.sh files that don't start with '.', skip directories that start with '.'

start cleaning up default config file (refs #217)

small refactorings in application, fix use of application function in build.py, clean up EB config file

 this script adds a header to each file in the dir, with some flexible options