startsWith accepts multiple arguments
endsWith now supports multiple arguments
changed test descriptions to reflect multiple arguments
remove leading and trailing spaces before interpolating key
Merge pull request #118 from az7arul/startsWith-endsWith-multiArg

Added multiple argument support for startsWith and endsWith methods
Merge pull request #119 from az7arul/template-improvements

remove leading and trailing spaces before interpolating key
changelog: updated with Azharul Islam's contributions.
.template method will replace keys that do not exist with empty string