Start using "using StringTools()" to make code a tad more readable
Added ability to install from hxml file(s)

The syntax as it stands is:

    haxelib install 		# asks for libname or hxml file
    haxelib install erazor	# install specific project
    haxelib install erazor 2	# install specific project/version
    haxelib install build.hxml  # install all libs and versions listed in build.hxml
    haxelib install all         # scan the current folder for hxml files, install all listed libs
Merge branch 'master' into feature/InstallFromHxmlFile

Conflicts:
	src/tools/haxelib/Main.hx
Merge branch 'master' into feature/InstallFromHxmlFile

Conflicts:
	src/tools/haxelib/Main.hx

Messy merge, but it appears to all be working
Added a test file that installs several libs
Merge pull request #17 from jasononeil/feature/InstallFromHxmlFile

Install from hxml file