[FIX] apply suggestions and remove some warnings

account_loan/__manifest__.py

@@ -1,7 +1,7 @@
 # Copyright 2018 Creu Blanca
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 {
-    "name": "Account Loan management",
+    "name": "Account Loan",
     "version": "12.0.1.0.0",
     "author": "Creu Blanca,Odoo Community Association (OCA)",
     "website": "http://github.com/OCA/account-financial-tools",

account_loan/readme/USAGE.rst

@@ -15,4 +15,4 @@ On a posted loan you can:
 
 .. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
    :alt: Try me on Runbot
-   :target: https://runbot.odoo-community.org/runbot/92/11.0
+   :target: https://runbot.odoo-community.org/runbot/92/12.0

account_loan/wizard/account_loan_generate_entries.py

@@ -5,6 +5,7 @@ from odoo import api, fields, models
 
 class AccountLoanGenerateWizard(models.TransientModel):
     _name = "account.loan.generate.wizard"
+    _description = 'Loan generate wizard'
 
     date = fields.Date(
         'Account Date',

account_loan/wizard/account_loan_pay_amount.py

@@ -1,3 +1,4 @@
+# Copyright 2018 Creu Blanca
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
 from odoo import api, fields, models, _
@@ -6,6 +7,7 @@ from odoo.exceptions import UserError
 
 class AccountLoan(models.TransientModel):
     _name = 'account.loan.pay.amount'
+    _description = 'Loan pay amount'
 
     loan_id = fields.Many2one(
         'account.loan',

account_loan/wizard/account_loan_post.py

@@ -6,6 +6,7 @@ from odoo.exceptions import UserError
 
 class AccountLoanPost(models.TransientModel):
     _name = "account.loan.post"
+    _description = 'Loan post'
 
     @api.model
     def _default_journal_id(self):