0.8.1 RC1
Merge branch 'develop' into release-0.8.1
0.8.0RC2
Merge branch 'develop' into release-0.8.1
0.8.0 RC3
Merge branch 'develop' into release-0.8.1
0.8.1 RC4
0.8.1 - Date of release
Merge branch 'release-0.8.1' into develop
Add permission WRITE_EXTERNAL_STORAGE when needed.

API 19+ doesn't need this permission to write to getExternalFilesDir(null).
Merge branch 'hotfix/NullPointer-in-addCustomProviders-#6579' into develop
0.8.1 with hotfix for storage permission.
Set the adapter before calling ButterKnife.

According to https://github.com/JakeWharton/butterknife/issues/167:
"The view isn't set until onPostCreate. You need to either trigger layout creation by setting the adapter before calling ButterKnife or by moving the call to inject to onPostCreate."
Merge branch 'bug/ButterKnife-doesn't-find-provider_list_view-#6581' into develop
Check for null certificate on validCertificate
Merge branch 'bug/NullPointer-in-validCertificate-#6582' into develop
New SessionDialog if any argument previously
Merge branch 'bug/Fragment-already-active-in-signUpDialog-#6583' into develop
Revert deb2cfd & avoid arguments if previous fragment != null
Merge branch 'bug/Fragment-already-active-in-signUpDialog-#6583' into develop