The license.txt file has been replaced with LICENSE for quite a while
now. INAL but it didn't seem accurate to say "hey, checkout license.txt
although there's no such file". Apart from this, there were
inconsistencies in the headers altogether...this change brings
consistency.
* Remove six for PY2 compatability since our dependencies are not, PY2
is legacy.
* Removed usages of utils from future/past libraries since they are
deprecated. This includes 'from __future__ ...' and 'from past...'
statements.
* Removed compatibility imports for PY2, switched from six imports to
standard library imports.
* Removed utils code blocks that handle operations depending on PY2/3
versions.
* Removed 'from __future__ ...' lines from templates/code generators
* Used PY3 syntaxes in place of PY2 compatible blocks. eg: metaclass
* [email] remove style from email so it does not mess up desk
* [fix] tests
* [fix] image parsing, #savedbyatestcase
* [fix] timeout issues in test
* [fix] timeout issues in test
Added frappe wrappers to math.ceil and math.floor, since they are widely
used functions. Also added their docstrings for documentation and wote
test cases. And some minor typo fixes
