1.0.0
 * Made pkg-config another "tool" of a toolchain, so that Eclipse plugins registering toolchains can specify the path to a toolchain-specific pkg-config binary along with the path to other
traditional tools (compilers, etc). 
 * Tycho support to automate the build and the update-site creation.
 
0.8.0
 * Project-level configuration
 * Use of environment variable on the pkg-config command
 * Preference to set pkg-config binary path
 * Use of List instead of ArrayList

0.5.4
  * Allow spaces in pkg-config path under Unix systems
  * NullPointerError fixed on pkg-config property tab