Getting the £ as default for UK.
Setting the default does not get the job done, so we go this way.
Removed dangerous mutable default argument for the Currency init
add pycharm IDE to .gitignore
missing Currency class comparison methods
remove test dependencies from setup.py
Merge remote-tracking branch 'ssouk/enforcing_pound_sign'
Merge remote-tracking branch 'therms/master'
Merge remote-tracking branch 'julianwachholz/master'
Merge remote-tracking branch 'kirpit/master'