helper functions for fatal exit
refactor: extract function
refactor: location of export directory is stored in variable
run R CMD check from .tar.gz instead of from directory, to avoid checking files like .gitignore; see http://stackoverflow.com/a/8887542/946850
fixes #5: read package name from DESCRIPTION file, allow calling rant from any directory or without parameters
bugfix
refactor: extract function
refactor: extract variable
work in package directory first, saves some path prefixes; prerequisite for #4
try to respect 80-character limit
-V switch is obsolete as of ca3b8667
bugfix
if using current version, do not change build date; still can be overridden by -d
bugfix
Merge pull request #6 from krlmlr/5-pkg-name

Read package name from DESCRIPTION