Bump version to 3.0.6.0dev
Fixed flake8 issues #4204.

Review Id : 3023001
Merge pull request #162 from goyal1092/feature/task-4204

Fixed flake8 issues #4204.
Show installation instructions in README.rst
Travis can use python-lxml apt package #3907
Check for anonymous user in get_address_form #4224
Web handler to get all the countries #4213

Review ID: 3193001
Merge pull request #164 from prakashpp/develop

Check for anonymous user in get_address_form #4224
Merge pull request #160 from priyankarani/feature/task-4213

Web handler to fetch all the countries #4213
Merge branch 'hotfix/3.0.5.1' into develop
Merge branch 'hotfix/3.0.5.2' into develop
Add defaults in Nereid Website form #4251

Review ID: 3233001
Changed Nereid Website form view #4250

Review ID: 3223002
Fix version in tryton.cfg
Merge pull request #166 from aroraumang/feature/task-4251

Add defaults in Nereid Website form #4251
Merge pull request #168 from aroraumang/feature/task-4250

Changed Nereid Website form view #4250
Implemented Remember me and added its test case #4244
Created Nereid Web User #4252

Review ID: 3243001
Merge pull request #169 from goyal1092/feature/task-4244

Implemented Remember me and added its test case #4244
Merge pull request #167 from aroraumang/feature/task-4252

Created Nereid Web User #4252