fix compilation on Mac OS X

Newer Mac OS X versions (e.g. Mountain Lion) will not build without
warnings if -DLUA_DL_DYLD is specified. However, looking at the
Lua 5.1.5 Makefile it is no longer required to do that.
add GtCheckBoundariesVisitor
src_clean
add loccheck tool
gtruby: add bindings for CheckBoundariesVisitor
Merge pull request #197 from satta/macosx

fix compilation on Mac OS X
Correcting names of GtFeature[In|Out]Stream classes to be consistent with the analogous array-based stream classes
Updating docs
Adds the ability to deliver region nodes from a feature stream using original ranges (instead of inferred ranges)
Minor fixes
fix mail address
Merge pull request #191 from satta/boundariescheck

Add checks for parent-child range boundaries
Merge pull request #200 from standage/feat

 Correcting names of GtFeature[In|Out]Stream classes to be consistent with the analogous array-based stream classes
Merge pull request #201 from standage/featorig
Fixed use_orig_ranges function
Closes #202.
Fixes based on src_check
Using GT_WU properly (issue not caught on clang/OSX)
Merge pull request #203 from standage/featorig

GtFeatureInStream fixes
close unneeded file descriptors

Leaving them open may result in hitting ulimits
on some machines.